Homework Help: math

Posted by tesj on Thursday, January 17, 2013 at 9:32am.

#1:Which ratios form a proportion? Use equivalent ratios to test each pair.

A: 4/9, 2/3
B: 6/15, 9/12
C: 12/16, 15/20
D:18/20, 24/30

explain how o do it plsss

math - Steve, Thursday, January 17, 2013 at 10:58am
(C) 3/4
math - Reiny, Thursday, January 17, 2013 at 11:00am
I will do one for you

B:

if 6/15 = 9/12 then 6(12) = 15(9), which is FALSE

or you can reduce each to lowest form
6/15 = 3/5
9/12 = 3/4 , obviously not the same

do the others the same way

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