1) 2 2/15 × 3 1/8 = 2 1/15 × 3 1/4 = 6 1/60
2) 10-6 1/60 = 9 60/60 - 6 1/60 = 3 59/60
3) 3 59/60 × 9/28 = 239/60 × 9/28 = 2151/1680
1) 2 2/15 × 3 1/8 = 2 1/15 × 3 1/4 = 6 1/60
2) 10-6 1/60 = 9 60/60 - 6 1/60 = 3 59/60
3) 3 59/60 × 9/28 = 239/60 × 9/28 = 2151/1680