Question

6 3/5*7 1/6-2 1/6*6 3/5

Answer 1

63/5*71/6-21/6*6/5=105

Answer 2

33/5*45/6-15/6*33/5=33*45/5*6-15*33/6*5=33*9/6-3*33/6=297/6-99/6=198/6=33