Solutions by everydaycalculation.com
1st number: 2 2/8, 2nd number: 3/12
188 - 312 is 21.
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Related: 36/8-3/12 18/8-6/12 18/16-3/12 18/8-3/24 54/8-3/12 18/8-9/12 18/24-3/12 18/8-3/36 90/8-3/12 18/8-15/12 18/40-3/12 18/8-3/60 18/8-21/12 18/56-3/12 18/8-3/84
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