Question

Ma poate ajuta cineva?

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Answer 1

$\frac{111}{700} \div ( \frac{1}{7} + \frac{1}{70} + \frac{1}{700} )$

$= \frac{111}{700} \div ( \frac{100}{700} + \frac{10}{700} + \frac{1}{700} )$

$= \frac{111}{700} \div \frac{100 + 10 + 1}{700}$

$= \frac{111}{700} \div \frac{111}{700}$

$= 1$