(7,6-4 3/4)÷1,9
Помагите

(7,6-4 3/4)÷1,9 = (7 6/10 - 4 3/4)÷1,9 = (7 12/20 - 4 15/20)÷1,9 = (3 - 3/20)÷1,9 = 2 17/20 ÷ 19/10 = 57/20 × 10/19 = 3/2 = 1 целая 1/2 = 1,5