Question

what should be subtracted from numerator and denominator of a fraction 15 upon 92 becomes 5 upon 7

Answer 1

Hi ,

Let x should be subtracted from

numerator and denominator of a

fraction 15 upon 92 so that it

becomes 5 upon 7

( 15 - x )/( 92 - x ) = 5/7

7( 15 - x ) = 5 ( 92 - x )

105 - 7x = 460 - 5x

105 - 460 = 7x - 5x

- 355 = 2x

x = - 355/2

Answer 2

( 15 - x )/( 92 - x ) = 5/7

7( 15 - x ) = 5 ( 92 - x )

105 - 7x = 460 - 5x

105 - 460 = 7x - 5x

- 355 = 2x

x = - 355/2