72/3+4 1/6*(6 2/7−3 5/7) найти от результата 60%

11 1/35

Пошаговое объяснение:

1) 6 2/7 - 3 5/7 = 2 4/7

2) 4 1/6 * 2 4/7 = 25/6 * 18/7 = 75/7 = 10 5/7

3) 7 2/3 + 10 5/7 = 7 14/21 + 10 15/21 = 17 29/21 = 18 8/21

4) 18 8/21 *6/10 = 386/21 * 3/5 = 386/35 = 11 1/35

7 2/3 +4 1/6 * (6 2/7 - 3 5/7)

Пошаговое объяснение:

1) 6 2/7 - 3 5/7 = 5 9/7 - 3 5/7 = 2 4/7

2) 4 1/6 * 2 4/7 = 25/6* 18/7= 450/42

3) 7 2/3 +450/42=23/3 + 450/42=23/3 + 225/21= 161/21 + 225/21= 386/21=18 8/21

4) 18 8/21 * 60/100= 386/21*60/100= 2316/210 =11 6/210 = 11 1/35