4分之7×5分之3等于2分之3×10分之7
(7/4)*(3/5)=(3/2)*(7/10)
(7/10):(7/4)=(3/5):(3/2)=2:5
或:
(7/10):(3/5)=(7/4):(3/2)=7:6
用4分之7×5分之3等于2分之3×10分之7组成的比例是多少,比值是
用4分之7×5分之3等于2分之3×10分之7组成的比例是多少,比值是
数学人气:303 ℃时间:2019-08-21 09:11:36
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