3 3\5 × (6- 1 5\6) помогите)

Question

3 3\5 × (6- 1 5\6) помогите)

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Answer 1

3 3/5 * (6 - 1 5/6) = 15
1) 6 - 1 5/6 = 5 6/6 - 1 5/6 = 4 1/6
2) 3 3/5 * 4 1/6 = 18/5 * 25/6 = 3/1 * 5/1 = 15