What is the ratio of 12:21

I am doing this for a project and i am only in the 6th grade so i donrt know what it is so if any body would be welling to help that would be amizing
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1 Answer

 A - 4/7 

If you divide both the numerator and the denominator by 3, you will get 4/7. 

12 / 3 = 4 
21 / 3 = 7

by Level 10 User (57.4k points)

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