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7分之3= 14分之几 = 几分之9 = ( )÷42 = 7+( )分之3+9 = ( )÷(
人气:461 ℃ 时间:2020-09-23 03:39:53
解答
7分之3= 14分之6 =21分之9 = (18)÷42 = 7+(21)分之3+9 = (3)÷(7)
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