(0.0777……+0.0232323……)×0.22222……×99/100

零记忆2022-10-04 11:39:542条回答

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PZQ126 共回答了21个问题 | 采纳率100%
(0.0777……+0.0232323……)×0.22222……×99/100
=(7/90+23/990)×2/9×99/100
=10/99×11/50
=1/45
1年前
xuzr2007 共回答了2个问题 | 采纳率
今天感觉头晕
1年前

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