簡約 1/6 × 5/6+5/6 × 1/6

解

簡約

\frac{1}{6} \cdot \frac{5}{6} + \frac{5}{6} \cdot \frac{1}{6}

\frac{5}{18}

十進法表記

0.27777 \dots

解答ステップ

\frac{1}{6} \cdot \frac{5}{6} + \frac{5}{6} \cdot \frac{1}{6}

\frac{1}{6} \cdot \frac{5}{6} = \frac{5}{36}

\frac{5}{6} \cdot \frac{1}{6} = \frac{5}{36}

= \frac{5}{36} + \frac{5}{36}

\frac{5}{36} + \frac{5}{36} = \frac{5}{18}

= \frac{5}{18}