精英家教网 > 小学数学 > 题目详情
1-
2
5
+
3
5
=1-1=0…
×
×
分析:根据分数的加减法进行计算即可得到答案.
解答:解:1-
2
5
+
3
5

=
3
5
+
3
5

=1
1
5

故答案为:×.
点评:解答此题的关键是根据分数的加减法进行计算,然后再进行判断即可.
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