Question

8．$\frac{2}{5}$、$\frac{3}{8}$、$\frac{9}{6}$、$\frac{7}{5}$、$\frac{6}{8}$、$\frac{4}{6}$这六个分数中，假分数是$\frac{9}{6}$、$\frac{7}{5}$，真分数是$\frac{2}{5}$、$\frac{3}{8}$、$\frac{6}{8}$、$\frac{4}{6}$，同分母的是$\frac{2}{5}和\frac{7}{5}$、$\frac{3}{8}$和$\frac{6}{8}$、$\frac{9}{6}$和$\frac{4}{6}$．

Answer 1

分析 ①假分数的定义为：分子大于或等于分母的分数为假分数，据此判断；
②真分数的意义：分子小于分母的分数叫做真分数，据此解答；
③同分母就是分母相同．

解答 解：①假分数：$\frac{9}{6}、\frac{7}{5}$

②真分数：$\frac{2}{5}、\frac{3}{8}、\frac{6}{8}、\frac{4}{6}$

③同分母的是：$\frac{2}{5}和\frac{7}{5}$；$\frac{3}{8}和\frac{6}{8}$；$\frac{9}{6}和\frac{4}{6}$．
故答案为：$\frac{9}{6}、\frac{7}{5}$；$\frac{2}{5}、\frac{3}{8}、\frac{6}{8}、\frac{4}{6}$；$\frac{2}{5}和\frac{7}{5}$；$\frac{3}{8}和\frac{6}{8}$；$\frac{9}{6}和\frac{4}{6}$．

点评 本题考查了学生对于真分数、假分数定义的理解．