42/48 = 7/8
18/7 x 8/15 = 144/105 = 48/35 or 1 and 13/35
you need to equal them out, so it is actually 48 over 56 (times by 8) subtract 7 over 56 (times by 7). so the answer is 41 over 56.
In it's simplest form, it would be 7/8
6/7 just divide by 8
7/8 + 5/6 = 42/48 + 40/48 = 82/48 = 134/48 = 117/24
7 over 48
(7/8) * (1/6) = (7*1)/(8*6) = 7/48
42/48 = 7/8
42/48 = 21/24 = 7/8
It is 7/8
8 over 7
5/6 times 7/8 is 35/48
Or you could just multiply it by 1/6 7/48
7/8
7/8
7/8