9⼀10÷(1⼀2×(4⼀5-3⼀10)) 简便运算

2024-11-23 08:37:12
推荐回答(1个)
回答1:

9/10÷(1/2×(4/5-3/10))
=9/10÷1/2÷(8/10-3/10)
=9/10×2×2
=18/5