括号4⼀27 5⼀36,括号除以5⼀9。

2024-11-29 12:00:26
推荐回答(3个)
回答1:

(4/27+5/36)÷5/9
=(4/27+5/36)x9/5
=4/27x9/5+5/36x9/5
=4/15+1/4
=16/60+15/60
=31/60
谢谢,请采纳

回答2:

(4/27+5/36)÷(5/9)
=9X(4/27)÷5+9X(5/36)÷5
=4/15+1/4
=16/60+15/60
=31/60

回答3:

(4/27+5/36)/(5/9)
=(4/27+5/36)*9/5
=4/27*9/5+5/36*9/5
=4/15+1/4
=16/60+15/60
31/60