3÷9=21分之()=()分之12 14分之()=()分之6=8÷28 ()分之5=36分之()=6分之1
①3÷9=21分之()=()分之12
②14分之()=()分之6=8÷28
③()分之5=36分之()=6分之1
人气:339 ℃ 时间:2019-09-06 04:06:16
解答
3÷9=1/3=21分之(7)=(36)分之12
14分之(4)=(21)分之6=8÷28 =2/7
(30)分之5=36分之(6)=6分之1
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