Question

15 задание срочно пажалуйста

Answer 1

Пошаговое объяснение:

а)

1) 7/10 - 4/15 = 21/30 - 8/30 = 13/30

2) 13/30 * 4/13 = 1/15 * 2/1 = 2/15

в)

1) 1/15 + 1/5 = 1/15 + 3/15 = 4/15

2) 4/15 * 15/22 = 2/1 * 1/11 = 2/11

с)

1) 14/25 * 22/70 = 1/25 * 22/5 = 22/125

2) 22/125 * 5/11 = 2/25 * 1/1 = 2/25

д)

1) 16/42 * 7/8 = 2/6 * 1/1 = 2/6 = 1/3

2) 1/3 * 3/4 = 1/1 * 1/4 = 1/4