Question

Reduce to simplest form -9/12-(-7/4)

Answer 1

-9/12+7/4
-9/12+21/12
12/12
=1

Answer 2

The answer is:

1

Work/explanation:

Find the least common denominator. The LCD for 4 and 12 is 12:

`\sf{-(9)/(12)+(7)/(4)}`

`\sf{-(9)/(12)+(7*3)/(4*3)}`

`\sf{-(9)/(12)+(21)/(12)}`

Subtract

`\sf{-(9-21)/(12)}`

`\sf{-(-12)/(12)}`

`\sf{(12)/(12)}`

`\sf{1}`

Hence, the answer is 1.