133除以乘五等于三十五分之八加二十七分之二除以九分之七减三分之二

2025-04-03 17:39:25
推荐回答(1个)
回答1:

23/5X9/10+27/5-10/9如果要简便运算的话,这个减应该改变除以,否则如下运算
=207/50+270/50-10/9
=477/50-10/9=4293/450-500/450=3793/450
改为除以后,运算如下
=23/5X9/10+27/5X9/10
=(23/5+27/5)X9/10
=10X9/10
=9
(8/9-1/3)/(7/18X2/3)
=(8/9-3/9)/(7/27)
=5/9X27/7
=15/7