Question

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

Answer 1

分析 分數(shù)乘整數(shù)的意義與整數(shù)乘法的意義相同，就是求幾個相同加數(shù)和的簡便運算；據(jù)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，
故答案為：$\begin{array}{l}\frac{3}{4}\end{array}$×4．

點評 此題考查了分數(shù)乘整數(shù)意義的運用．