Question

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Answer 1

Пошаговое объяснение:

1) 2  1/6 - 1  2/9 : 3  2/3 = 13/6 - 11/9 : 11/3 = 13/6 - 11/9 * 3/11 = 13/6 - 1/3 = 11/6 =

= 1  5/6.

2) 4  2/5 : (7/10 + 2  3/5) = 22/5 : (7+26)/10 = 20/15 = 1 1/3.

3) (7 - 3  2/3) * 2/3 : 5/18 = 3 1/3 * 2/3 * 18/5 = 10/3 * 2/3 * 18/5 = 8

Answer 2

Пошаговое объяснение:

№1

1) 1 2/9 : 3 2/3 = 11/9 : 11/3 = 11/9 * 3/11 = 1/3 * 1/1 = 1/3

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

№2

1) 7/10 + 2 3/5 = 7/10 + 2 6/10 = 2 13/10 = 3 3/10

2) 4 2/5 : 3 3/10 = 22/5 : 33/10 = 22/5 * 10/33 = 2/1 * 2/3 = 4/3 = 1 1/3

№3

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

2) 3 1/3 * 2/3 = 10/3 * 2/3 = 20/9

3) 20/9 : 5/18 = 20/9 * 18/5 = 4/1 * 2/1 = 8/1 = 8