Hello!
Answer: =0.2 *The answer must have a decimal point.*
Explanation:
First, you had to dividing by the numbers. Dividing into the groups.
[tex]15/3=5[/tex]
[tex]15/5=3[/tex]
[tex]3*5=15[/tex]
[tex]5*3=15[/tex]
[tex]3/15=0.2[/tex]
3/15=(3÷3)/(15÷3)=1/5
1/5=1÷5=0.2; since, the fraction 1/5=(1*2)/(5*2)=2/10=0.2
Hope this helps!
Thanks!