Question

Q.1 what should be added 1/7 to to get 1?​

Answer 1

let x be required no.

1/7+x=1

x= 1-1/7

x= 6/7

6/7 is the required number.

Answer 2

$\huge{\mathcal{\red{SOLUTION;}}}$

Let the required number be "x"

So,

$\frac{1}{7} + x = 1 \\ \frac{1}{7} - 1 = x \\ 6/7 = x$