Answer:
12/5, 7/10, and 8/5
Step-by-step explanation:
12/5, 7/10, and 8/5 all have ratios that cannot be simplified because that is their next lowest common factor is 1.
However, 9/15 can be simplified because they have the common factor 3.
If you take the numerator and denominator and divide them both by 3, you get the fraction 3/5.
