簡約 (-3 6/7)(1/81)(2.3)(-0.5)

解

簡約

(- 3 \frac{6}{7}) (\frac{1}{81}) (2.3) (- 0.5)

\frac{23}{420}

十進法表記

0.05476 \dots

解答ステップ

(- 3 \frac{6}{7}) (\frac{1}{81}) (2.3) (- 0.5)

帯分数を仮分数に変換する:

3 \frac{6}{7} = \frac{27}{7}

= (- \frac{27}{7}) (\frac{1}{81}) (2.3) (- 0.5)

2.3 = \frac{23}{10}

= - \frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} (- 0.5)

0.5 = \frac{1}{2}

= - \frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} (- \frac{1}{2})

規則を適用する:

- a (- b) = ab

- \frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} (- \frac{1}{2}) = \frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} \cdot \frac{1}{2}

= \frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} \cdot \frac{1}{2}

\frac{27}{7} \cdot \frac{1}{81} \cdot \frac{23}{10} \cdot \frac{1}{2} = \frac{23}{420}

= \frac{23}{420}