Question

11．分母是5的真分?jǐn)?shù)有$\frac{1}{5}$，$\frac{2}{5}$，$\frac{3}{5}$，$\frac{4}{5}$，分子是4的假分?jǐn)?shù)有$\frac{4}{1}$，$\frac{4}{2}$，$\frac{4}{3}$，$\frac{4}{4}$．．

Answer 1

分析 在分?jǐn)?shù)中，分子小于分母的分?jǐn)?shù)為真分?jǐn)?shù)；分子大于或等于分母的分?jǐn)?shù)為假分?jǐn)?shù)．據(jù)此確定即可．

解答 解：分母是5的真分?jǐn)?shù)有$\frac{1}{5}，\frac{2}{5}，\frac{3}{5}，\frac{4}{5}$，分子是4的假分?jǐn)?shù)有$\frac{4}{1}，\frac{4}{2}，\frac{4}{3}，\frac{4}{4}$．
故答案為：有$\frac{1}{5}，\frac{2}{5}，\frac{3}{5}，\frac{4}{5}$；$\frac{4}{1}，\frac{4}{2}，\frac{4}{3}，\frac{4}{4}$．

點(diǎn)評(píng) 明確真分?jǐn)?shù)與假分?jǐn)?shù)的意義是完成本題的關(guān)鍵．