Question

4/9+4/9×1/9的简便运算是什么？

Answer 1

4/9+4/9×1/9
等于4/9乘以括号的1+1/9
等于4/9×10/9
等于40/81

Answer 2

你好，这道题简便运算是利用乘法分配律。所以=4/9x(1+1/9)=4/9x10/9=40/81。

Answer 3

4/9+4/9x1/9
=4/9x(1+1/9)
=4/9x10/9
=40/81

Answer 4

= 4/9+（4+1）/9=（4+4+1）/9=1