簡約 (0.51/4+1 1/5)1.2

解

簡約

(0.5 \cdot \frac{1}{4} + 1 \frac{1}{5}) \cdot 1.2

1 \frac{59}{100}

十進法表記

1.59

解答ステップ

(0.5 \cdot \frac{1}{4} + 1 \frac{1}{5}) \cdot 1.2

帯分数を仮分数に変換する:

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

= (0.5 \cdot \frac{1}{4} + \frac{6}{5}) \cdot 1.2

0.5 = \frac{1}{2}

= (\frac{1}{2} \cdot \frac{1}{4} + \frac{6}{5}) \cdot 1.2

\frac{1}{2} \cdot \frac{1}{4} = \frac{1}{8}

= (\frac{1}{8} + \frac{6}{5}) \cdot 1.2

\frac{1}{8} + \frac{6}{5} = \frac{53}{40}

= \frac{53}{40} \cdot 1.2

1.2 = \frac{6}{5}

= \frac{53}{40} \cdot \frac{6}{5}

\frac{53}{40} \cdot \frac{6}{5} = \frac{159}{100}

= \frac{159}{100}

仮分数を帯分数に変換する:

\frac{159}{100} = 1 \frac{59}{100}

= 1 \frac{59}{100}