Explanation:
30/70 (divide by 10) is 3/7
12/30 (divide by 6) is 2/5
9/21 (divide by 3) is 3/7
6/14 (divide by 2) is 3/7
Hence 30/70, 9/21 and 6/14 are equivalent fractions
Therefore, the fraction 12/30 is the odd one out
Answer:
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