九分之七除以五分之十一加九分之二乘十一分之五等于多少

简便运算,要过程
2024-10-29 19:36:34
推荐回答(3个)
回答1:

7/9÷11/5+2/9×5/11
=7/9×5/11+2/9×5/11
=(7/9+2/9)×5/11
=5/11.

回答2:

7/9÷11/5+2/9×5/11
=7/9×5/11+2/9×5/11
=﹙7/9+2/9﹚×5/11
=1×5/11
=5/11

回答3:

(7/9)/(11/5)+(2/9)*(5/11)=5/11