1⼀4÷(3⼀5+2⼀5×(7⼀8-1⼀4))有简便算法吗

2025-02-24 08:03:49
推荐回答(1个)
回答1:

1/4÷(3/5+2/5×(7/8-1/4))有简便算法吗
1/4÷(3/5+2/5×(7/8-1/4))
=1/4÷(3/5+2/5*5/8)
=1/4÷(3/5+1/4)
=1/4*20/17
=5/17