Найдите значение выражения (7/5 – 17/12) : 5/12 =

Решение:

(7/5 – 17/12) : 5/12 = 7/5 : 5/12 – 17/12 : 5/12 = 7/5 ⋅ 12/5 – 17/12 ⋅ 12/5 = 84/25 – 17/5 = 84/25 – 17 ⋅ 5 /5 ⋅ 5 = 84/25 – 85/25 = 84 – 85 / 25 = -1 ⋅ 4 / 25 ⋅ 4 = -4/100 = -0,04

Ответ: -0,04

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