Question 651006
The denominator is x since it's unknown.  The numerator (top number) is 6 less than x or x-6.  So the fraction is (x-6)/x and it is equal to 3/5<P>
(x-6)/x = 3/5   cross multiply and solve for x:  5x-30 = 3x<P>
2x = 30 <P>
x = 15.  So the fraction is (15-6)/15 = 9/15 which reduces to 3/5.