10*(1/5+2 1/2) Помогите

Question

10*(1/5+2 1/2)
Помогите

Answer 1

10 × (1\5+2 1\2)=

10 × (1\5+3\2)=

10 × (2\10+15\10)=

10 × 17\10=

17

ответ: 17

Answer 2

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