Найдите произведения: 2 1/7x3 1/9 5/8x1 13/15x2 2/7

Question

Найдите произведения:
2 1/7x3 1/9
5/8x1 13/15x2 2/7

Answer 1

2 1/7x3 1/9 =15\7*28\9=20\3=6 2\3
5/8x1 13/15x2 2/7=5\8*28\13*16\7=40\13=3 1\3

Answer 2

2 1/7x3 1/9 = 6 2/3
5/8x1=5/8
13/15x2 2/7 = 1 103/105