小学五年级数学题5/12-(1/12-1/2)=?简便计算
问题描述：
小学五年级数学题5/12-(1/12-1/2)=?简便计算
答
5/12-(1/12-1/2)
=5/12-1/12+1/2
=5/12-1/12+1/2
=1/3+1/4
=5/6
祝你考好，或写好，按这样做绝对没错！
答
5/12-1/12+1/2
=4/12+1×6/2×6
=4/12+6/12
=10/12
=5/6
注：/为分数线
答
5/12-1/12+1/2=5/6
1/12减1/2为负分数
答
5/12-(1/12-1/2)
=(5/12-1/12)+1/2
=1/3+1/2
=5/6
答
5/12-(1/12-1/2)
=5/12-1/12+1/2
=1/3+1/2
=5/6
答
5/12-(1/12-1/2) =5/12-1/12+6/12 =4/12+6/12 =10/12 =5/6 结果是5/6。