Вычислите 1)3 1/5:2 2/15 2)1 1/8:3/4 3)3 3/5:2 7/10

Question

Вычислите 1)3 1/5:2 2/15 2)1 1/8:3/4 3)3 3/5:2 7/10

Answer 1

1)3 1/5 : 2 2/ 15 = 16/5 * 32/15 = 16/5 * 15/ 32 = 3/2 = 1 1/2 = 1,5
2) 1 1/8 : 3/4 = 9/8 * 4/3 = 3/2 = 1 1/2 = 1,5
3) 3/5 : 2 7/ 10 = 3/5 * 27/10 = 3/5 * 10/27 = 2/9