Question

34/86 * 43/51, 7/18 * 90/77, 63/64 * 48/91, 19/100 * 5/38

Answer 1

34/86 * 43/51=4/3= 1 1/3
7/18 * 90/77=5/11
63/64 * 48/91=12/13
19/100 * 5/38=10