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|-1/2|+1/2除以(2/9+|-2/3|)=几多

题目详情
|-1/2|+1/2除以(2/9+|-2/3|)=几多
▼优质解答
答案和解析
=1/2+1/2÷(2/9+2/3)
=1/2+1/2÷(8/9)
=1/2+1/2×(9/8)
=8/16+9/16
=17/16
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