简便运算(能简单就简单) (68-7/18)乘1/17 (2/3-5/9乘3/8)除5/16(2-1/12+1/8)乘12(4除3/5-5)除2/33/5除[(3/4-2/3)除5/6]乘1/8

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 21:02:05
简便运算(能简单就简单) (68-7/18)乘1/17 (2/3-5/9乘3/8)除5/16(2-1/12+1/8)乘12(4除3/5-5)除2/33/5除[(3/4-2/3)除5/6]乘1/8
xR;N@ eh3wmK^s(Yp$S COA )rX Ufc'#R334ϖl5]NuUHo XWGdXDj1=2ؐ虐ЛK>YBV:se"#` +C- G:clX@g8匎PDI¸?'25֐xĖ*KzaH :v^5nJvPjˆ7BOӪnU Պ苨Galeңca"*{)\'g%;':

简便运算(能简单就简单) (68-7/18)乘1/17 (2/3-5/9乘3/8)除5/16(2-1/12+1/8)乘12(4除3/5-5)除2/33/5除[(3/4-2/3)除5/6]乘1/8
简便运算(能简单就简单) (68-7/18)乘1/17 (2/3-5/9乘3/8)除5/16
(2-1/12+1/8)乘12
(4除3/5-5)除2/3
3/5除[(3/4-2/3)除5/6]乘1/8

简便运算(能简单就简单) (68-7/18)乘1/17 (2/3-5/9乘3/8)除5/16(2-1/12+1/8)乘12(4除3/5-5)除2/33/5除[(3/4-2/3)除5/6]乘1/8
(68-7/18)乘1/17 =68乘1/17-7/18乘1/17=4-7/306=3又299/306
(2/3-5/9乘3/8)除5/16=2/3*16/5-5/9*3/8*16/5=2/3*16/5-2/3=2/3*(16/5-1)=22/15
(2-1/12+1/8)×12
=2×12-1/12×12+1/8×12
=24-1+1.5
=24.5
(4除3/5-5)除2/3
=(4*5/3-5)*3/2
=4*5/3*3/2-5*3/2
=10-7.5
=2.5
3/5除[(3/4-2/3)除5/6]乘1/8
=3/5÷[1/12*6/5]*1/8
=3/5÷1/10*1/8
=3/5×10*1/8
=3/4

?