Question

9/20×4.6+5.4×9/26简便怎么算？

Answer 1

9/20×4.6+5.4×9/20简便怎么算
可以用乘法分配律进行计算
9/20×4.6+5.4×9/20
=9/20x（4.6+5.4）
=9/20x10
=9/2

Answer 2

9/20×4.6+5.4×9/26=9/20×23/5+27/5×9/26=(9×23)/(20×5)+(27×9)/(5×26)=207/100+243/130=2691/1300+2430/1300=5121/1300