Question

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Answer 1

Required Answers : of questions ( 1 ) and ( 2 ) are :

1 )  Let the number be added is x

Therefore,-7/-9+x=-13/27

=> x=-13/27-7/9

=>x=-13/27-21/27

=>x=-44/27

Therefore , required number is -44/27

2 )    For a number x, additive inverse a is defined as a + x = 0 ; a = -x.

Here, Given number is -2/-5

Let Additive inverse of -2/-5 be x.

Now, x + (-2/-5) = 0

=> x + 2/5 =0

=> x = -2/5 .

Therefore the additive inverse of -2/-5 is -2/5 .

Answer 2

your answer in the attachment