簡約 (1.86)/(0.3)-1/6 × (19.3-14/5)+0.3× 6.8

解

簡約

\frac{1.86}{0.3} - \frac{1}{6} \cdot (19.3 - \frac{14}{5}) + 0.3 \cdot 6.8

\frac{549}{100}

十進法表記

5.49

解答ステップ

\frac{1.86}{0.3} - \frac{1}{6} (19.3 - \frac{14}{5}) + 0.3 \cdot 6.8

0.3 = \frac{3}{10}

= \frac{1.86}{0.3} - \frac{1}{6} (19.3 - \frac{14}{5}) + \frac{3}{10} \cdot 6.8

6.8 = \frac{34}{5}

= \frac{1.86}{0.3} - \frac{1}{6} (19.3 - \frac{14}{5}) + \frac{3}{10} \cdot \frac{34}{5}

\frac{1.86}{0.3} = \frac{186}{30}

= \frac{186}{30} - \frac{1}{6} (19.3 - \frac{14}{5}) + \frac{3}{10} \cdot \frac{34}{5}

\frac{1}{6} (19.3 - \frac{14}{5}) = \frac{11}{4}

\frac{3}{10} \cdot \frac{34}{5} = \frac{51}{25}

= \frac{186}{30} - \frac{11}{4} + \frac{51}{25}

\frac{186}{30} - \frac{11}{4} + \frac{51}{25} = \frac{549}{100}

= \frac{549}{100}