Question

7．$\begin{array}{l}\underbrace{\frac{6}{2015}+\frac{6}{2015}+…+\frac{6}{2015}}_{2015個(gè)}=\end{array}$$\frac{6}{2015}$×2015=6．

Answer 1

分析 根據(jù)分?jǐn)?shù)乘整數(shù)的意義，求2015個(gè)$\frac{6}{2015}$是多少，用$\frac{6}{2015}$乘2015即可．

解答 解：$\underset{\underbrace{\frac{6}{2015}+\frac{6}{2015}+…+\frac{6}{2015}}}{2015個(gè)}$
=$\frac{6}{2015}$×2015
=6；
故答案為：$\frac{6}{2015}$，2015，6．

點(diǎn)評 分?jǐn)?shù)乘整數(shù)的意義：求幾個(gè)相同加數(shù)的和用乘法計(jì)算．