Answer:
36/20 = 9/5
Step-by-step explanation:
Factors of 72: 2×2×2×3×3
Factors of 108: 2×2×3×3×3
A: 2, ..., 36
Multiples of 4: 4, 8, 12, 16, 20..
Multiples of 10: 10, 20, 30..
B: 20, 40, ..
Highest fraction value when:
Denominator least
Numerator max
36/20