Verified Answer :

Purple ballon = 4/5 Total ballon
= 4/5 15
= 4 * 3 
= 12

In short, Your Answer would be 12 ballons

Hope this helps!

anthonysilby1

first find 1/5, by dividing 15 by 5
15/5 = 3
to find 4/5, multiply 1/5, which is 3, by 4
4*3 = 12

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