几分之10等于12分之几等于2÷5等于几分之35等于30分之几等于6分之几
()12()306----------------------------------------==2÷5===10()35()()...
( ) 12 ( ) 30 6
-------- -------- -------- -------- --------
= = 2÷5 = = =
10 ( ) 35 ( ) ( ) 展开
-------- -------- -------- -------- --------
= = 2÷5 = = =
10 ( ) 35 ( ) ( ) 展开
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