Question

Divide the difference of 4/7
and 12/13
by their sum.​

Answer 1

Answer:

-1 is the answer

when we divide the difference and sum.

Answer 2

       Answer:

Step-by-step explanation:

difference means subtraction

sum means addition

therefore;   4/7_12/13

                  by cross multiplying

                  (4×13)-(7×12)/(7×13)

                  52_84/91=-32/91

                   

                 4/7+12/13

                 by cross multiplying

                 52+84/91=136/91

                 -32/91÷136/91

                 -4/17

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