1/105÷[1/7一(-1/3)-1/5]
3个回答
1/105÷[1/7一(-1/3)-1/5]
=1/105÷(1/7+1/3-1/5)
=1/105÷(1/7+1/15)
=1/105÷22/105
=1/22
相关问题
(1/2+1/3+1/4)÷1/30+(1/3+1/5+1/7)÷1/105+(1/5+1/7+1/9)÷1/315
[(-5)-(-1/3)+1/7]+(-105)=
(5/6-3/4)÷3/105/9x((3/7-1/14)7/9)
(1/2+1/3+1/5)1/30+(1/3+1/5+1/7)1/105
2.1×5.1×159.1÷0.7÷1.7÷3.7=______.
1/5÷(1/3÷1/4)÷(1/4÷1/5)÷(1/5÷1/6)÷(1/6÷1/7)【简便计算】
直接写出得数 1÷[1/50]= [5/7]+[2/7]= [3/5]÷[1/3]= [1/3]÷3= [3/5]×[1
3:()=7:()1/3÷1/4=():()1/7:1/8=7:()5/6÷8/7=9:()
计算.4÷8/3-1/2=1/5+2/7÷5/7=8÷2/3+4=25÷(1-1/6)=18÷(1+4/5)=49÷(1