Question

Add the following - 4/9,7/12and - 3/8​

Answer 1

`- (17)/(72)`

Explanation:

`- (4)/(9) + (7)/(12) + ( - ( 3)/(8) )`

When there is a (+) in front of an expression in parentheses, the expression remains the same:

`- (4)/(9) + (7)/(12) - (3)/(8)`

`( - 4 * 8 + 7 * 6 - 3 * 9)/(72)`

Calculate the sum of difference

`( - 32 + 42 - 27)/(72)`

`(10 - 27)/(72)`

`- (17)/(72)`

Hope this helps..

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