(3 2/3+1 3/4)÷(6 7/12-2 1/4) допоможіть!!!​

Ответ:

Пошаговое объяснение:

(3 2/3+1 3/4)÷(6 7/12-2 1/4) = 1 1/4

1) 3 2/3 + 1 3/4 = 11/3 + 7/4 = 44/12 + 21/44 = 65/12 = 5 5/12

2) 6 7/12-2 1/4 = 79/12 - 9/4 = 79/12 - 2712 = 52/12 = 13/3 = 4 1/3

3) 5 5/12 : 4 1/3 =  65/12 : 13/3 = 65/12 * 3/13 = 5/4 * 1/1 = 5/4 = 1 1/4