Which ratio forms a proportion with 9/15 ?

a) 6/10
b) 16/21
c) 36/50
d) 45/70
idk the answer, please help.

5 answers

If you have a typo, it would be 45/75 or 36/60.

@psyDAG it's not a typo.

First off, you can simplify 9/15 by dividing both the numerator and denominator by 3. So it's 3/5.

A - 6/10 simplifies into 3/5 also
B - 16/21 can't simplify so no
C - 36/50 = 18/25 can't simplify so no
D - 45/70 = 9/14 can't simplify so no

thank you, ian!

No problem :)

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