(1/2-1/3)x3/8÷25%减算
(1/2-1/3)x3/8÷25%减算
不需要简算啊,直接写1/6*3*1/8*4=1/2*1/2=1/4=0.25
/是分号的意思
(1/2-1/3)x3/8÷125%
(1/2-1/3)x3/8÷125%
=1/6x3/8÷5/4
=1/16×4/5
=1/20
(1/2-1/6)x3/51/5
2/5
解析:
(1/2-1/6)×(3/5)+(1/5)
=(2/6)×(3/5)+(1/5)
=1/5+1/5
=2/5
1/8除[(1/2-1/3)x3
1/8÷[(1/2-1/3)x3]
=1/8÷[1/6x3]
=1/8÷1/2
=1/4
(1/8十5/12)x(-24)+12×(1/2-l/3)x3/2
(1/8十5/12)x(-24)+12×(1/2-l/3)x3/2
=-(3+10)+(6-4)×3/2
=-13+3
=-10。
(-1)X1/2=(-1)+1/2 (-1/2)X3/1=(-1/2)=1/3
(-1)X1/2=(-1)+1/2 (-1/2)X3/1=(-1/2)=1/3
(-1)X1/2) =1/3
你确定是这样的?
(-1/2)^13*3^8*(-2)^12*(-1/3)^7=减算
原式=(-1/2)^12*(-2)^12*(-1/2)*(-1/3)^7*3^7*3=((-1/2)*(-2))^12*((-1/3)*3)^7*(-1/2)*3=1*(-1)*(-3/2)=3/2
望采纳~~
|一5又1/2|x(1/3一1/2)x3/11÷(1一1/4)
|一5又1/2|x(1/3一1/2)x3/11÷(1一1/4)
=11/2x(-1/6)x3/11÷3/4
=-11/12×3/11×4/3
=-1/4×4/3
=-1/3
(x一25)x3/8十25=1/2一5解方程
解:两边同时乘以8得:3(x-25)+75=4-40
3x-75+75=-36
3x=-36
x=-12
(5/8-(1/2+1/3)x3/4)÷16/23
8.5
2024-11-29 广告