Question

What should be added to -1 so as to get 5/7



?​

Answer 1

required no. =5/7-(-1)

=5/7+1 = 12/7

Answer 2

Let  the no. to be added be x

x +(-1) = 5/7

x = 5/7 +1

x = (5+7)/7

x = 12/7

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