Solutions by everydaycalculation.com
1st number: 1 4/8, 2nd number: 8/12
128 - 812 is 56.
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Related: 24/8-8/12 12/8-16/12 12/16-8/12 12/8-8/24 36/8-8/12 12/8-24/12 12/24-8/12 12/8-8/36 60/8-8/12 12/8-40/12 12/40-8/12 12/8-8/60 84/8-8/12 12/8-56/12 12/56-8/12 12/8-8/84
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