Write an expression that equivalent to 7/8

In this question , we have to find the equivalent expression to

To find the equivalent expression of a fraction, we can either multiply numerator and denominator by same variable or same number, or we can divide both numerator and denominator by same number or same variable .

So if we multiply both numerator and denominator by 2, we will get

So

what is the original number? you forgot to add it.

x = 12

y = 1

for the points!