Answer:
Step-by-step explanation:
Multiply the given values by any number you like. The results will be integers if the number is even.
×2 gives 3×2 : (3 1/2)×2 = 6 : 7
×3 gives 3×3 : (3 1/2)×3 = 9 : 10 1/2
×4 gives 3×4 : (3 1/2)×4 = 12 : 14
