括号1⼀6+7⼀25括号÷2⼀5+5⼀12

2024-12-29 18:21:33
推荐回答(2个)
回答1:

括号1/6+7/25括号÷2/5+5/12
解:
(1/6+7/25)÷2/5+5/12
=1/6×5/2+7/25×5/2+5/12
=5/12+7/10+5/12
=23/15

回答2:

(1/6+7/25)/(2/5)+5/12
=(1/6+7/25)*5/2+5/12
=1/6*5/2+7/25*5/2+5/12
=5/12+7/10+5/12
=5/12+5/12+7/10
=5/6+7/10
=25/30+21/30
=56/30
=28/15