Question

(2,25+7,1/3-2,5)÷3,2/5-1,1/4÷5/6​

Answer 1

Ответ:

1 7/12

Пошаговое объяснение:

1) 2,25 + 7 1/3 = 2 1/4 + 7 1/3 = 2 3/12 + 7 4/12 = 9 7/12

2) 9 7/12 - 2,5 = 9 7/12 - 2 1/2 = 9 7/12 - 2 6/12 = 7 1/12

3) 7 1/12 : 3 2/5 = 85/12 : 17/5 = 85/12 * 5/17 = 5/12 * 5/1 = 25/12 = 2 1/12

4) 1 1/4 : 5/6 = 5/4 * 6/5 = 1/2 * 3/1 = 3/2 = 1 1/2

5) 2 1/12 - 1 1/2 = 1 13/12 - 1 6/12 = 1 7/12