Show work for this fraction equations 30 1/2 -13 3/4

QUESTION POSTED AT 03/12/2019 - 12:37 PM

Answered by admin AT 03/12/2019 - 12:37 PM

30\frac12-13\frac34

Let's put these as improper fractions.
30 = 60/2. add the 1/2 to get 61/2
13 = 52/4. add the 3/4 to get 55/4

\frac{61}2-\frac{55}4

To add/subtract fractions, they must have the same denominator. (bottom no.)
If we multiply the top and bottom of a fraction by something, it stays equal.
We can conclude that 61/2 = 122/4. (bottom multilpies by 2, so does the top)

\frac{122}4-\frac{55}4

Now that we have a common denominator, we can subtract.
The "fourths" just sort of acts like a unit. Subtract 55 from 122 to get \frac{67}4.

We can convert this to an improper fraction simply by dividing 67 by 4.
This leaves us with 16, and a remainder of 3. Our answer is \boxed{16\frac34}
Post your answer

Related questions

What is 4.32 over 100 like as a fraction. what is it simplified?

4.32/100
= 432/10,000
= 27/625.

4.32 over 100 is like 432/10,000 as a fraction and is simplified as 27/625.

Hope this helps~

ANSWERED AT 14/12/2019 - 05:28 PM


QUESTION POSTED AT 14/12/2019 - 05:28 PM

Show how: There are 5 apples. Troy cuts each apple in half. Then he cuts those 2 pieces into 4 slices. What is the total number of apple slices?

Ummm ima say 12... if he cuts 5 in half that would make 10...add 2 slices(from cutting more)...it would be 12 slices in all.

ANSWERED AT 14/12/2019 - 05:27 PM


QUESTION POSTED AT 14/12/2019 - 05:27 PM

0.0009999 closest to 0, 1/2, 1

It's closer to 0 than 1/2 or 1

ANSWERED AT 14/12/2019 - 05:26 PM


QUESTION POSTED AT 14/12/2019 - 05:26 PM

How to show 6 groups of students sell 162 balloons and there are 3 students in each group

What you would do is put 6 groups with 3 students in each group and then put 9 balloons in each group

ANSWERED AT 14/12/2019 - 05:25 PM


QUESTION POSTED AT 14/12/2019 - 05:25 PM

How to show work 1200 divided by three

1,200÷3=400_3×400=1,200.

ANSWERED AT 14/12/2019 - 05:24 PM


QUESTION POSTED AT 14/12/2019 - 05:24 PM

PLEASE HELP : Math middle school how to make fractions into decimals -4 4/25

-(4+4/25)

= -(4+16/100)

=-(4.00 + 0.16)

= -4.16

ANSWERED AT 14/12/2019 - 05:24 PM


QUESTION POSTED AT 14/12/2019 - 05:24 PM

Is 2/5 less than ,greater than ,or equal to 1/2

The answer you are looking for is less than

ANSWERED AT 14/12/2019 - 05:23 PM


QUESTION POSTED AT 14/12/2019 - 05:23 PM

The ratio of red collars to black collars sold at one store is 9 to 10. In one month 30 black collars are sold. Is 57 a reasonable number for the total number of red and black collars sold that month? Explain your reasoning.

Yes because if the ratio is 9:10, then the new ratio would be ?:30. Since 10 was multiplied by 3, 9 should also be multiplied by 3, which equals 27. 30+27=57 so yes it is a reasonable number for the total

ANSWERED AT 14/12/2019 - 05:23 PM


QUESTION POSTED AT 14/12/2019 - 05:23 PM

Is 10/9 closest to 0, 1/2 or 1? Explain

1 is closer to 0 because it's next to it

ANSWERED AT 14/12/2019 - 05:22 PM


QUESTION POSTED AT 14/12/2019 - 05:22 PM

How do you write 10x 10 x 10 x10 using exponents SHOW YOUR WORK WILE ANSWERING THIS QUESTION

The way you write 10x10x10x10 using exponents. The way you use exponents is by counting the numbers of 10 there are since there is four you have to put 10 with a little number four on the top next to the number. Just in case that way you say it is 10 to the fourth power

ANSWERED AT 14/12/2019 - 05:21 PM


QUESTION POSTED AT 14/12/2019 - 05:21 PM

How did you turn 8 5/10 into 8 1/2

Awesome 5
hi! 1,000,000 Awesome! Are you happy!?

ANSWERED AT 14/12/2019 - 05:19 PM


QUESTION POSTED AT 14/12/2019 - 05:19 PM

Explain how your model for 3 fiths minus 1/2 is different from your model for 3 fiths minus 3 tenths

Explain how your model for 3 fiths minus 1/2 is different because is 1/2 fiths

ANSWERED AT 14/12/2019 - 05:18 PM


QUESTION POSTED AT 14/12/2019 - 05:18 PM

The band members marched in 8 rows. There were 6 band members in each row. Explain how the fact that 5x6=30 can help you find 8x6

If you know that 5*6=30 then you know that the answer will be more than 30. So now you have to just add 6 to the number 30 three more times to get the answer that 8*6=48

ANSWERED AT 14/12/2019 - 05:17 PM


QUESTION POSTED AT 14/12/2019 - 05:17 PM

The ratio of red collars to black collars sold at one store is 9 to 10. in one month 30 black collars are sold. is 57 a reasonable number for the total number of red and black collars sold that month? explain your reasoning

Yes because 30/9 is 3.33 and 3.33 * 10 is 33

30+33 is 63 which is close to 57.

without rousing the first step it would be 30+30 which is 60

ANSWERED AT 14/12/2019 - 05:16 PM


QUESTION POSTED AT 14/12/2019 - 05:16 PM

Explain how you know that when finding a fractional part of a whole number is the same as multiplying that fraction by a whole numbver


I know that because my 8th grade math teacher taught us (in 1954)
that when you see the word "of" in a math problem, it almost always
means "times".  So part of your question says "... finding a fractional
part times a whole number ...".
 
 

ANSWERED AT 14/12/2019 - 05:16 PM


QUESTION POSTED AT 14/12/2019 - 05:16 PM

How is finding a fractional number is the same as multiplying that fraction by a whole number

It is easy you just kinda need to simplify and i thing. you wll ind

ANSWERED AT 14/12/2019 - 05:15 PM


QUESTION POSTED AT 14/12/2019 - 05:15 PM

What's 51 correct and 9 incorrect as a fraction

Yes because it's a improper fraction

ANSWERED AT 14/12/2019 - 05:13 PM


QUESTION POSTED AT 14/12/2019 - 05:13 PM

Four girls and two boys are working on a art project. they have four squares of felt. if each person gets an equal share of felt, how much of a piece of felt will each person gets?

4 divided by 6
Your answer will be a decimal

0.66666666666

Hope I helped
jcossin22

ANSWERED AT 14/12/2019 - 05:13 PM


QUESTION POSTED AT 14/12/2019 - 05:13 PM

How many times greater is 1 1/2 then 1/4

6 times

6 * 1/4 is 6/4
6/4 is 1 2/4 which is 1 1/2

ANSWERED AT 14/12/2019 - 05:13 PM


QUESTION POSTED AT 14/12/2019 - 05:13 PM

What is the difference between 1/4 and 1 1/2

11/2 = 22/4 so you can say : 22/4 - 1/4 = 21/4 = 5.25 :)))
i hope this be helpful 
have a nice day 

ANSWERED AT 14/12/2019 - 05:13 PM


QUESTION POSTED AT 14/12/2019 - 05:13 PM

Color 3 parts red color 4 part blue color 1 part green. What fraction of the circle is red

The fraction of the circle that is red is 3/8

ANSWERED AT 14/12/2019 - 05:12 PM


QUESTION POSTED AT 14/12/2019 - 05:12 PM

Ed filled a pitcher up 2/7 full then poured 2/4 of the pitcher into a glass. What fraction of the total pitcher did he pour in the glass?

The answer is 22/28 because you have to multiply the denominator to each other :)

ANSWERED AT 14/12/2019 - 05:12 PM


QUESTION POSTED AT 14/12/2019 - 05:12 PM

Kim says the amount of flour in the recipe can be expressed as a fraction. IS she correct?

Yes she is correct it can be expressed as an fraction

ANSWERED AT 14/12/2019 - 05:11 PM


QUESTION POSTED AT 14/12/2019 - 05:11 PM

How can I work out 30% of (blank) is 60?

X= 60*100 /30
=600/3= 200 

check
200*30/100=60

ANSWERED AT 14/12/2019 - 05:10 PM


QUESTION POSTED AT 14/12/2019 - 05:10 PM

What is the total cost of 0.5 pound of peaches selling for $0.80 per pound and 0.7 pound of oranges selling for $0.90 per pound?5th grade work.

Given situation : 0.5 pound of peaches selling for 0.80 dollars/ pound 0.7 pound of oranges selling for 0.90 dollars / pound. Solution Given number 1 : Peaches => 0.5 pound = meaning, ½ pound is available, And 1 pound of it costs 0.80 dollars. Let’s solve: => 0.80 dollars * 0.5 => 0.40 dollars – the price of the peaches. Given number 2 : Oranges => 0.7 pounds of oranges, meaning less than 1 pound. And 1 pound costs 0.90 dollars Let’s solve to get the anwer => 0.7 * .90 => 0.63 dollars – the costs of 0.7 pounds of oranges,

ANSWERED AT 14/12/2019 - 05:10 PM


QUESTION POSTED AT 14/12/2019 - 05:10 PM

Write 2 equivqlent fractions for 4/5

You can multiply the fraction by any number you want so the new fraction gonna be equivalent to your fraction like : (4 × 2)/(5 × 2) = 8/10 or  (4 × 3) / ( 5×3) = 12/15 so 4/5 = 8/10 = 12/15 :))
i hope this be helpful 
have a nice day 

ANSWERED AT 14/12/2019 - 05:09 PM


QUESTION POSTED AT 14/12/2019 - 05:09 PM

How do you know if a fraction is equal to one?

2/2 = 1  and (1/3)^0 = 1  so x/x = 1 because there is same number and (x/y)^0= 1 because its 0 and 1/1 is always 1 these are the fractions that are always 1 :))
i hope this be helpful 
have a nice day 

ANSWERED AT 14/12/2019 - 05:06 PM


QUESTION POSTED AT 14/12/2019 - 05:06 PM

39= 3m - 12 I'd really appreciate it if you showed your work.

Flip the equation.
3m-12=39
and add 12 to both sides.
3m-12+12=39+12
3m=51
Now divide both sides by 3.
 \frac{3m}{3} = \frac{51}{3}


Final answer: m=17

ANSWERED AT 14/12/2019 - 05:05 PM


QUESTION POSTED AT 14/12/2019 - 05:05 PM

There are 30 students in a class, including 16 boys. Write each ratio. A. Girls to boys. B. Boys to Girls. C. Girls to all students D. Boys to all students

30 students in a class, and 16 boys and 14 girls.

A ratio compares two quantities. 

A) 14:16

B)16:14

C) 14:30

D)16:30

ANSWERED AT 14/12/2019 - 05:03 PM


QUESTION POSTED AT 14/12/2019 - 05:03 PM