a) 9/20 × 5/12 = 45/240 = 3/16b) 3/5 × 6 = 18/5 = 3.6c) 10.2/3 × 2.1/4 = 10.2 × 2.1 / 3 × 4 = 21.42 / 12 = 1.785
a) 9/20 × 5/12 = 45/240 = 3/16
b) 3/5 × 6 = 18/5 = 3.6
c) 10.2/3 × 2.1/4 = 10.2 × 2.1 / 3 × 4 = 21.42 / 12 = 1.785