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=(2)
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=(3)
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=(4)
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=(5)
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=(6)
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=(7)
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=(8)
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=解:(1)
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=
,(2)
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,(3)
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,(4)
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,(5)
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,(6)
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=
,(7)
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,(8)
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=
.分析:根据同分母分数加减法的计算方法进行计算.
点评:同分母分数相加减,分母不变,只把分子相加减.
编辑:chaxungu时间:2026-04-27 10:28:33分类:小学数学题库
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=解:
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