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3/4x5/13+5/4x1/13简算

题目详情
3/4x5/13+5/4x1/13简算
▼优质解答
答案和解析
3/4x5/13+5/4x1/13
=3/4x5/13+1/4x5/13
=(3/4+1/4)x5/13
=1x5/13
=5/13
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