Решите по действиям ​

Question

Решите по действиям ​

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Answer 1

4 2/7 : 1 5/21 + (4 3/13 * 14/15 - 3 1/3)

1) 4 3/13 * 14/15 = 55/13 * 14/15 = 3 37/39

2) 3 37/39 - 3 1/3 = 8/13

3) 4 2/7 : 1 5/21 = 30/7 * 21/26 = 3 6/13

4) 3 6/13 + 8/13 = 3 14/13 = 4 1/13