Answer:
1
Step-by-step explanation:
There is one whole 3 inside of 4 1/2 or 4.5.
Multiples of 3 are 3x1=3 3x2=6....
Only a single whole 3 can be inside of 4.5.
One
ONE
4.5 ÷ 3 = 1 . 5 <=====so there is one and a half 3's in 4.5
