Question

直接写出结果． =	=	=	=
=	=	=	=
=	=

Answer 1

解：

=，	=1，	=2，	=，
=，	=，	=1，	=，
=，	=4．

分析：同分母分数相加减分母不变分子相加减；异分母分数相加减，先通分，变成同分母分数再相加减；据此计算即可．
点评：本题考查了分数加减法的计算法则，注意把结果化成最简分数．