Question

The same number is added to both numerator and denominator of 5/6.if the result is equal to 7/8.find the number

Answer 1

Answer:

let the number be x

(5 + x)/(6 + x) = 7/8

8(5 + x) = 7(6 + x)

40 + 8x = 42 + 7x

8x - 7x = 42 - 40

x = 2

so 2 is the number added to both numerator and denominator