2又2⼀5乘1⼀3-1⼀2的差乘3⼀11除以1又1⼀4?

2025-03-06 22:34:20
推荐回答(2个)
回答1:

2又2/5乘1/3-1/2的差乘3/11除以1又1/4?
解:
(2又2/5×1/3-1/2)×3/11÷1又1/4
=(4/5-1/2)×3/11÷1又1/4
=3/10×3/11÷1又1/4
=9/110÷1又1/4
=18/275

回答2:

(2又2/5×1/3-1/2)×3/11÷1又1/4
=(12/5×1/3-1/2)×3/11÷5/4
=(4/5-1/2)×3/11×4/5
=3/10×3/11×4/5
=18/275