[1-(1⼀2+1⼀3)×1⼀5]÷5⼀6和(2⼀3-12⼀7×7⼀24)÷7⼀3 简算

2025-05-14 05:43:18
推荐回答(3个)
回答(1):

[1-(1/2+1/3)×1/5]÷5/6
=(1-1/6×1/5)×6/5
=1×6/5-1/30×6/5
=30/25-1/25
=29/25

(2/3-12/7×7/24)÷7/3
=(2/3-1/2)×3/7
=2/3×3/7-1/2×3/7
=4/14-3/14
=1/14

回答(2):

[1-(1/2+1/3)×1/5]÷5/6
=(1-5/6)×1/5×6/5
=1/6×1/5×6/5
=1/25
(2/3-12/7×7/24)÷7/3
=(2/3-1/2)×3/7
=1/6×3/7
=1/14
祝学习进步

回答(3):

(1)=6/5-5/6×1/5×6/5=1
(2)=2/3×3/7-12/7×7/24×3/7=2/7-3/14=1/14