1: ⑴20 9 16 25
⑵2/5 3/4 3/2
5/6 8 12/5
⑶ < > > > =
⑷ 4/6 9/6
2/3 3/2
⑸ 1/12 5/12 7/12 11/12 2
⑹ 30
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2: ⑴ C ⑵ A ⑶ B ⑷ B ⑸ C
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