Question

1. Найдите значение выражения: (2,5-2целых 1/3)-(-5целых1/7)+1целых 1/3: (-5.6)​пожалуйста

Answer 1

Пошаговое объяснение:

1) 2,5 - 2 1/3 = 2 5/10 - 2 1/3 = 2 15/30 - 2 10/30 = 5/30 = 1/6

2) 1/6 * (-5 1/7) = 1/6 * (-36/7) = 1/1 * (-6/7) = -6/7

3) 1 1/3 : (-5,6) = 4/3 : (-56/10) = 4/3 * (-10/56) = 1/3 * (-10/14) = -10/42 = -5/21

4) -6/7 + (-5/21) = -6/7 - 5/21 = -18/21 - 5/21 = -23/21 = -1 2/21

Answer 2

Ответ:

Пошаговое объяснение:

(2,5 - 2 1/3) - (-5 1/7) + 1 1/3 : (-5,6) = -1 2/21

1) 2,5 - 2 1/3 = 25/10 - 7/3 = 75/30 - 70/30 = 5/30 = 1/6

2) 1/6 * (-5 1/7) = 1/6 * (-36/7) = -6/7

3) 1 1/3 : (-5,6) = 4/3 : (-56/10) = 4/3 * (-10/56) = 1/3 * (-10/14) = -10/42 = -5/21

4) -6/7 + (-5/21) = -6/7 - 5/21 = -18/21 - 5/21 = -23/21 = -1 2/21