1/8+1/24+1/48+1/80简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 18:04:05

1/8+1/24+1/48+1/80简便计算
1/8+1/24+1/48+1/80简便计算

1/8+1/24+1/48+1/80简便计算
1/8+1/24+1/48+1/80
=1/8+1/80+1/24+1/48
=10/80+1/80+2/48+1/48
=11/80+1/16
=11/80+5/80
=16/80
=1/5

1 1 1 1 1 10 5 3 1 18 3
____ +____+____+____ =__x(___+____+____)=___+___=___
8 8x3 8x6 8x10 8 30 30 30 8 30 40
g给你想了一晚上 真难啊啊 啊啊啊啊啊

1/8+1/24+48+1/80
=1/4×(1/2+1/6+1/12+1/20)
=1/4×(1/1×2+1/2×3+1/3×4+1/4×5)
=1/4×(1-1/5)
=1/4×4/5
=1/5
括号内运用拆分分数的方法,相信你理解。