1/5
It is 3 over 4.
15 over 25 reduces to 3 over 5
It reduces to 3/5
10/15 = 2/3
No. Only 3 and 5 go into 15, but neither of those go into 28.
Answer is 5 over 9. Divide each by 3.
no
The GCF is 5. Divide 5 into 10 and 15. 10/15 = 2/3
Yes.
Yes.
divide both terms by 15 to get 3/2
divide both by 3 12/45 = 4/15