Question

17．2个$\frac{4}{5}$的积与$\frac{2}{5}$相加，和是多少？

Answer 1

分析 先算2个$\frac{4}{5}$的积，所得的积再加上$\frac{2}{5}$即可．

解答 解：$\frac{4}{5}$×$\frac{4}{5}$+$\frac{2}{5}$
=$\frac{16}{25}$+$\frac{2}{5}$
=$\frac{26}{25}$．
答：和是$\frac{26}{25}$．

点评 根据题意，先弄清运算顺序，然后再列式进行解答．