1/6 1/66 1/176 1/336(简算)

1/6 1/66 1/176 1/336
=11/66 1/66 1/176 1/336
=12/66 1/176 1/336
=2/11 1/176 1/336
=32/176 1/176 1/336
=33/176 1/336
=3/16 1/336
=63/336 1/336
=64/336
=4/21

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