Question

Calculează (105/70+12/6)*2/7=

Answer 1

Răspuns:

$( ^{3)} \frac{105}{70} + ^{35)} \frac{12}{6} ) \times \frac{2}{7} = \\ = ( \frac{105}{210} + \frac{420}{210} ) \times \frac{2}{7} \\ = \frac{735}{210} \times \frac{2}{7} \\ = \frac{105}{105} = 1$

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