Question

7．$\begin{array}{l}\underbrace{\frac{6}{2015}+\frac{6}{2015}+…+\frac{6}{2015}}_{2015個}=\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$\frac{6}{2015}$是多少，用$\frac{6}{2015}$乘2015即可．

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

點評 分?jǐn)?shù)乘整數(shù)的意義：求幾個相同加數(shù)的和用乘法計算．