Question

Решите уравнение
а)2целых 1/2:(1/х+5/12)-1 целая 5/6=2/3
б)3целых 3/10:(1/4х+5/12)-2целых 3/5 = 7/10
Фастом 50 балов
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Answer 1

Пошаговое объяснение:

а)

2 1/2 : (1/х + 5/12) - 1 5/6 = 2/3

2 1/2 : (1/х + 5/12) = 2/3 + 1 5/6

2 1/2 : (1/х + 5/12) = 4/6 + 1 5/6

2 1/2 : (1/х + 5/12) = 1 9/6

2 1/2 : (1/х + 5/12) = 2 3/6

1/х + 5/12 = 2 1/2 : 2 3/6

1/х + 5/12 = 5/2 : 15/6

1/х + 5/12 = 5/2 * 6/15

1/х + 5/12 = 1/1 * 3/3

1/х + 5/12 = 1/1 * 1

1/х + 5/12 = 1

1/х = 1 - 5/12

1/х = 7/12

х = 1 : 7/12

х = 1 * 12/7

х = 12/7

х = 1 5/7

б)

3 3/10 : (1/4х + 5/12) - 2 3/5 = 7/10

3 3/10 : (1/4х + 5/12) = 7/10 + 2 3/5

3 3/10 : (1/4х + 5/12) = 7/10 + 2 6/10

3 3/10 : (1/4х + 5/12) = 2 13/10

3 3/10 : (1/4х + 5/12) = 3 3/10

1/4х + 5/12 = 3 3/10 : 3 3/10

1/4х + 5/12 = 1

1/4х = 1 - 5/12

1/4х = 7/12

х = 7/12 : 1/4

х = 7/12 * 4/1

х = 28/12

х = 7/3

х = 2 1/3