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Helping my son with math homework. How do you do these types of questions?

7a/10 = 77/60

2 Answers

4 votes

a = 11 / 6

You want to find out what a is.

7a / 10 = 77 / 60

Put your equation into the form Ax = B, where x = a

You can multiply both sides by 10 to get rid of the denominator.

7a / 10 * 10 = 77 / 60 * 10

7a = 77 / 6

Put your equation into the form x = B, where x = a

You can get a on it's own by dividing both sides by 7.

7a ÷ 7 = 77 / 6 ÷ 7

a = 77 / 6 ÷ 7

When dividing fractions:

Convert 7 to a fraction:
(7)/(1)

Flip the second fraction and multiply.


(77)/(6)*
(1)/(7)=
(77)/(42)

a = 77 / 42

Simplify the fraction by dividing be a common factor - 7.

77 ÷ 7 = 11

42 ÷ 7 = 6

a = 11 / 6

User Aneury
by
5.2k points
7 votes

Answer:

The value of a is 11/6

Explanation:

see the image

Helping my son with math homework. How do you do these types of questions? 7a/10 = 77/60-example-1
User John McFarlane
by
5.2k points
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