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2-16/7+15/2-16/1+15/13-1又30/29
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2-16/7+15/2-16/1+15/13-1又30/29
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答案和解析
2-16/7+15/2-16/1+15/13-1又30/29
=2-(16/7+16/1)+15/13+15/2-1又30/29
=2-2/1+1-1又30/29
=1又30/14
=2-(16/7+16/1)+15/13+15/2-1又30/29
=2-2/1+1-1又30/29
=1又30/14
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