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Use common denominators to determine whether the ratios form a proportion.



6 : 9 and 9 : 12



A.
Yes. They form a proportion.


B.
No. They do not form a proportion.



Answer :

They are not in proportion, since its 6:9 round it down (2:3) so pretend the 6 are apples and the 9 are oranges

Every 2 apples there are 3 oranges

So having 9 apples what is that?

2 x ? = 9

2 x 4.5 = 9

So if you want to keep 2:3 you have you times the oranges by 4.5 aswell!

3 x 4.5 = 13.5

So since it is 9:12 not 9:13.5 they are not in proportion

Answer:

No they do not

Step-by-step explanation:

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