几道求比值和化简比的题

问题描述:

几道求比值和化简比的题
求比值和化简比①3.5比6.3②4分之1比8分之1③2分之1比5分之1

①3.5 : 6.3
=7/2 :63/10
=7/2 *10/63
=35/10 *10/63
=35/63
=5/9
②1/4 : 1/8
=1/4 *8
=2
③1/2 : 1/5
=1/2 *5
=5/2
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