Question

what number should be added to - 1 to get 5 by 7

Answer 1

12 by 7 should be added
12/7-1 =12/7-7/7=5/7

Answer 2

Hi...☺️

Here is your answer...✌️
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Let 'x' is to be added to -1 to get 5/7

Therefore,

$x + ( - 1) = \frac{5}{7} \\ \\ x - 1 = \frac{5}{7} \\ \\ x = \frac{5}{7} + 1 \\ \\ x = \frac{5 + 7}{7} \\ \\ x = \frac{12}{7}$

Answer : 12/7