Помогите решить пример

Question

Помогите решить пример

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Answer 1

(30 : 27 - 1/3) * 2 3/7 + 2/5 = 2 13/45  или 103/45

1) 30:27= 30/27 = 10/9

2) 10/9 - 1/3 = 10/9 - 3/9 = 7/9

3) 7/9 * 2 3/7 = 7/9 * 17/7 = 17/9

4) 17/9 + 2/5 = 85/45 + 18/45 = 103/45 = 2 13/45