展开 236-1/5

解答

展开

236 - \frac{1}{5}

\frac{1179}{5}

十进制

235.8

求解步骤

236 - \frac{1}{5}

将项转换为分式:

236 = \frac{236 \cdot 5}{5}

= \frac{236 \cdot 5}{5} - \frac{1}{5}

因为分母相等，所以合并分式:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{236 \cdot 5 - 1}{5}

236 \cdot 5 - 1 = 1179

= \frac{1179}{5}

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