Question

помогите !!математика 6 класс ​

Answer 1

Ответ:

5/6

Пошаговое объяснение:

1) 3 1/7 * 1/3 = 22/7 * 1/3 = 22/21 = 1 1/21

2) 2/7 + 1 1/21 = 6/21 + 1 1/21 = 1 7/21 = 1 1/3

3) 1 1/4 * 1 1/3 = 5/4 * 4/3 = 5/3 = 1 2/3

4) 2 1/4 - 1 2/3 = 2 3/12 -

1 8/12 = 1 15/12 - 1 8/12 = 7/12

5) 7/12 : 0,7 = 7/12 : 7/10 = 7/12 * 10/7 = 10/12 = 5/6