Question

7．计算；（-1$\frac{1}{2}$）×（-1$\frac{1}{3}$）×（-1$\frac{1}{4}$）×（-1$\frac{1}{5}$）×（-1$\frac{1}{6}$）×（-1$\frac{1}{7}$）．

Answer 1

分析 根据有理数的乘法，即可解答．

解答 解：原式=$\frac{3}{2}×\frac{4}{3}×\frac{5}{4}×\frac{6}{5}×\frac{7}{6}×\frac{8}{7}$
=4．

点评 本题考查了有理数的乘法，解决本题的关键是熟记有理数的乘法法则．