Question

15．男工人數(shù)占全廠人數(shù)的$\frac{3}{5}$，女工人數(shù)占全廠人數(shù)的$\frac{（）}{（）}$．

Answer 1

分析 把全廠人數(shù)看做單位“1”，則男工人數(shù)為$\frac{3}{5}$，女工人數(shù)為1-$\frac{3}{5}=\frac{2}{5}$，再用女工占的分率除以1即可．

解答 解：（1$-\frac{3}{5}$）÷1
=$\frac{2}{5}÷1$
=$\frac{2}{5}$
答：女工人數(shù)占全廠人數(shù)的$\frac{2}{5}$．
故答案為：$\frac{2}{5}$．

點(diǎn)評 把全廠人數(shù)看做單位“1”是解答本題的關(guān)鍵．