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Anonymous
Any of its multiples
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Of the numbers 12 are divisible by--which are 1,2,3,4,6, and 12, only the #1 will divide into 12 and 121.
The LCM is 84
1/7 x 12/9 = 12/63 = 4/21
Your answers are 1 & 3
30, 20 and 12