Question

3/35 - ( 1/6 : 5,25 : 1 1/2 + 6 3/4:9 :1 1/2 ) умножить на 1 5/10 + 3 1/2 : 4 2/3 =

Answer 1

Ответ:

17/315

Пошаговое объяснение:

1) 1/6 : 5,25 = 1/6 : 525/100 = 1/6 * 100/525 = 1/6 * 4/21 = 4/126 = 2/63

2) 2/63 : 1 1/2 = 2/63 : 3/2 = 2/63 * 2/3 = 4/189

3) 6 3/4 : 9 = 27/4 * 1/9 = 3/4 * 1/1 = 3/4

4) 3/4 : 1 1/2 = 3/4 : 3/2 = 3/4 * 2/3 = 6/12 = 1/2

5) 4/189 + 1/2 = 8/378 + 189/378 = 197/378

6) 197/378 * 1 5/10 = 197/378 * 15/10 = 197/378 * 3/2 = 197/126 * 1/2 = 197/252

7) 3 1/2 : 4 2/3 = 7/2 : 14/3 = 7/2 * 3/14 = 1/2 * 3/2 = 3/4

8) 3/35 - 197/252 = (108 - 985)/1260 = -877/1260

9) -877/1260 + 3/4 = (-877 + 945)/1260 = 68/1260 = 17/315