Do you mean
5y/6 + (y-6)/5 = y + 1/8 ?
If that is what you mean you just multiply both sides by the lowest common denominator which is 6*5*8/2 = 120
You get
100y + 24(y-6) = 120y + 15
now, expand the brackets
collect like terms on the left side
subtract 120y from both sides
etc
finish it and see if montanajace is right!