Question

Упростите выражение
$( \frac{1}{5c} + \frac{1}{10c} \times \frac{c {}^{2} }{6}$
Подробнее!!
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Answer 1

$\Big(\dfrac{1}{5\, c}^{\diagdown2}+\dfrac{1}{10c}^{\diagdown 1}\Big)\cdot \dfrac{c^2}{6}=\dfrac{2+1}{10\, c}\cdot \dfrac{c^2}{6}=\dfrac{3}{10\, c}\cdot \dfrac{c^2}{6}=\dfrac{c}{10\cdot 2}=\dfrac{c}{20}$