簡約 2(1/5 m-2/5)+3/5

解

簡約

2 (\frac{1}{5} m - \frac{2}{5}) + \frac{3}{5}

\frac{2 m - 1}{5}

解答ステップ

2 (\frac{1}{5} m - \frac{2}{5}) + \frac{3}{5}

簡素化

\frac{1}{5} m - \frac{2}{5} : \frac{m - 2}{5}

= 2 \cdot \frac{m - 2}{5} + \frac{3}{5}

簡素化

2 \cdot \frac{m - 2}{5} : \frac{2 ( m - 2 )}{5}

= \frac{2 ( m - 2 )}{5} + \frac{3}{5}

結合

\frac{2 ( m - 2 )}{5} + \frac{3}{5} : \frac{2 ( m - 2 ) + 3}{5}

= \frac{2 ( m - 2 ) + 3}{5}

拡張

2 (m - 2) + 3 : 2 m - 1

= \frac{2 m - 1}{5}