(-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少 (-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少
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(-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少 (-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少
(-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少
(-3 4/1)+(-1 12/1) =
负3又4分之1加负1又12分之1 等于多少
(-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少 (-3 4/1)+(-1 12/1) = 负3又4分之1加负1又12分之1 等于多少
1/2-1/3+1/4-1/5+1/6-1/12
=30/60-20/60+15/60-12/60+10/60-5/60
=10/60+3/60+5/60
=18/60
=3/10
如果本题有什么不明白可以追问,
12/(1/2-1/3-1/4)=
4(2x-1)-(10x+1)=3(2x+1)-12
1/3(2x-5)=1/4(x-3)-1/12
在1/2、1/3、1/4、1/5、1/6、1/8、1/12、1/20中,哪几个分数的和=1?1=1/( )+1/( )+1/( ) 1=1/()+1/( )+1/( )+1/( ) 1=1/( )+1/( )+1/( )+1/( )+1/( )
(x+1)/3=(y+2)/4 (x-3)/4- (y-3)/3=1/12
12÷(3/4÷1/5) = =
4/3×-()=2/5×()=12/7×()=5×()=1
(2/1+3/1-4/1)÷12/1=?
6(x-1)+1=3x+17和2(4-x)+1=3(x+1)-12
4-3(x-1)=x+12的答案.
下列变形不正确的是:( )A.5×(-6)=(-6)×5B.(1/4-1/2)×(-12)=(-12)×(1/4-1/2C.(-1/6+1/3)×(-4)=(-4)×(-1/6)+1/3×4D.(-25)×(-16)×(-4)=[(-25)×(-4)]×(-16)下列计算中错误
解方程 1-(2x+1)/4+(2x-1)/3=(10x+1)/12
-1平方-[1又3/7+(-12)÷6]平方×(-3/4)立方=
0.25+12/1+(-3/2)-4/1-12/5
(1/8+1/12)*3+(1/12+1/24)x=1
根据1/2=1/3+1/6,1/3=1/4+1/12填空1/4=1/()+1/()1/6=1/()+1/()1/5=1/()+1/()1/7=1/()+1/()
(x-3/2)-(4x+1)=12(1/2x-1)-3(x-1/3)=1-x
(-8/9)×(-0.25)×(-1/4)×9=?(1又3/4-0.875-7/12)×(-1又1/7)=?(-5)×(-7/9)×(-0.8)×(2又1/4)×(-1/7)=?