化简 9/18+2/14

解答

化简

\frac{9}{18} + \frac{2}{14}

\frac{9}{14}

十进制

0.64285 \dots

求解步骤

\frac{9}{18} + \frac{2}{14}

消掉

\frac{9}{18} : \frac{1}{2}

= \frac{1}{2} + \frac{2}{14}

消掉

\frac{2}{14} : \frac{1}{7}

= \frac{1}{2} + \frac{1}{7}

\frac{1}{2} + \frac{1}{7} = \frac{9}{14}

= \frac{9}{14}

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