Answer:
12/24 and 3/4
Explanation:
Reduce all fractions that are not already reduced.
A. 4/3 and 16/12
16/12 = 4/3
Proportional
B. 3/4 and 6/8
6/8 = 3/4
C. 12/24 and 3/4
12/24 = 1/2
Not proportional
D. 6/9 and 2/3
6/9 = 2/3
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