Question

Work out the following:

a) 3/4 - 7/9 + 2/3

Answer 1

Answer: 23/36

Explanation:

`(3)/(4) -(7)/(9) +(2)/(3)`

You need to find a common denominator.

The common denominator is 36. You have to get all denominators to 36.

How to do that?

Example =
`(3)/(4) *(9)/(9) =(27)/(36)`.

Do that to all the fractions.

`(27)/(36) -(28)/(36) +(24)/(36) = (23)/(36)`