Question

13．$\frac{6}{5}$×$\frac{5}{6}$=0.125×8=$\frac{2}{3}$×1.5=$\frac{3}{5}$+$\frac{2}{5}$=1．

Answer 1

分析 根據(jù)倒數(shù)的意義：乘積是1的兩個數(shù)叫做互為倒數(shù)；據(jù)此解答．

解答 解：$\frac{5}{6}×\frac{6}{5}=1$
0.125×8=1
$\frac{2}{3}$×1.5=1
1$-\frac{3}{5}$=$\frac{2}{5}$
故答案為：$\frac{5}{6}$，8，$\frac{2}{3}$，$\frac{2}{5}$．

點評 解答此題的關(guān)鍵是根據(jù)倒數(shù)的含義進行解答即可．