Question

Помогитеее даю 70 баллов​

Answer 1

Пошаговое объяснение:

а) 6/35 * 20/21 = 2/7 * 4/7 = 8/49

б) 1 1/6 * 1 3/7 = 7/6 * 10/7 = 1/3 * 5/1 = 5/3 = 1 2/3

в) 12/35 * 25 = 12/7 * 5 = 60/7 = 8 4/7

г)

1) 2 4/5 * 1 1/9 = 14/5 * 10/9 = 14/1 * 2/9 = 28/9 = 3 1/9

2) 6 - 3 1/9 = 5 9/9 - 3 1/9 = 2 8/9

3) 27/39 * 2 8/9 = 27/39 * 26/9 = 3/3 * 2/1 = 6/3 = 2