m-3分之1减m+3分之1等于多少.
问题描述：
m-3分之1减m+3分之1等于多少.
答
1/(m-3)-1/(m+3)=(m+3)/(m-3)(m+3)-(m-3)/(m+3)(m-3)=6/(m+3)(m-3)
m-3分之1减m+3分之1等于多少.
1/(m-3)-1/(m+3)=(m+3)/(m-3)(m+3)-(m-3)/(m+3)(m-3)=6/(m+3)(m-3)