20.8-8又5/6怎么算

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20.8-8又5/6怎么算20.8-8又5/6怎么算20.8-8又5/6怎么算20.8-8又5/6=20又4/5-8又5/6=19又54/30-8又25/30=11又29/30

20.8-8又5/6怎么算
20.8-8又5/6怎么算

20.8-8又5/6怎么算
20.8-8又5/6
=20又4/5-8又5/6
=19又54/30-8又25/30
=11又29/30