Question

помогите уравнение по математике​

Answer 1

Вот ответ
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Answer 2

Пошаговое объяснение:

№1

1) 4 2/3 - 2 5/8 = 4 16/24 - 2 15/24 = 2 1/24

2) 1 5/7 * 2 1/24 = 12/7 * 49/24 = 1/1 * 7/2 = 7/2

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

4) 5/9 + 2 = 2 5/9

№2

1) 2 - 1 9/11 = 1 11/11 - 1 9/11 = 2/11

2) 3 1/7 * 2/11 = 11/7 * 2/11 = 2/7

3) 2/7 : 8/21 = 2/7 * 21/8 = 1/1 * 3/4 = 3/4

4) 2 - 3/4 = 4/4 - 3/4 = 1/4

№3

1) 2 7/15 - 5/12 = 2 28/60 - 25/60 = 2 3/60 = 2 1/20

2) 4 1/10 : 2 1/20 = 41/10 : 41/20 = 41/10 * 20/41 = 20/10 = 2

3) 2 * 5/6 = 10/6 = 5/3 = 1 2/3

4) 2 1/3 + 1 2/3 = 3 3/3 = 4

№4

1) 2 1/6 + 8/15 = 2 5/30 + 16/30 = 2 21/30 = 2 7/10

2) 1 1/2 : 2 7/10 = 3/2 : 27/10 = 3/2 * 10/27 = 1/1 * 5/9 = 5/9

3) 5/9 * 1 4/5 = 5/9 * 9/5 = 1

4) 4 5/12 - 1 = 3 5/12