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Anonymous
Make the lower number the same, firstly
1 / 3 = 4 / 12
1 / 4 = 3 / 12
then 4 / 12 + 3 / 12 = 7 / 12
Wiki User
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Eight and one fourth.
4/12 + 3/12 = 7/12
Two thirds.
The total is 9¼ or 37 over 4.
5/20 + 8/20 = 13/20