题目内容
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考点:分数的加法和减法
专题:运算顺序及法则
分析:把
+
=50%代入
+
+
=
,可得50%+
=
,再根据等式的性质,求出c,然后再进一步解答.
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解答:
解:把
+
=50%代入
+
+
=
,可得:
50%+
=
50%+
-50%=
-50%
=
×c=
×c
c=1
c÷
=1÷
c=3.
故答案为:√.
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50%+
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50%+
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c=3.
故答案为:√.
点评:本题关键根据等式的性质求出c的结果,然后再进一步解答.
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