Question

8．$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$改写成乘法算式是$\begin{array}{l}\frac{3}{4}\end{array}$×4．

Answer 1

分析 分数乘整数的意义与整数乘法的意义相同，就是求几个相同加数和的简便运算；据此解答．

解答 解：$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$+$\begin{array}{l}\frac{3}{4}\end{array}$=$\begin{array}{l}\frac{3}{4}\end{array}$×4，
故答案为：$\begin{array}{l}\frac{3}{4}\end{array}$×4．

点评 此题考查了分数乘整数意义的运用．