Question

3 3/4 * 5/12 * 8/15 =

1 5/6 * 8 2/11 * 4/9 =

2 1/27 * 3 1/5 * 7 4/11 =

Answer 1

 1 5/6 * 8 2/11 * 4/9= 11/6 * 90/11 * 4/9 = (11*90*4)/(6*11*9) =  20/3 = 6  2/3

2 1/27 * 3 1/5 * 7 4/11= 55/27 * 16/5 * 81/11 = (55*16*81)/(27*5*11) = 48