4⼀15-3⼀8+11⼀15-5⼀8怎样简便计算?

2025-03-16 05:47:13
推荐回答(2个)
回答1:

简便计算
4/15-3/8+11/15-5/8
=(4/15+11/15)-(3/8+5/8)
=1-1
=0

回答2:

计算如下:3/8×4/15+11/15×5/8 =3/2×1/15+11/3×1/8 =1/2×1/5+11/3×1/8 =1/10+11/24 =12/120+55/120 =67/120 乘法的计算法则:1、多位数乘法法则整数乘法低位起,几位数乘法几次积。个位...