Solutions by everydaycalculation.com
1st number: 2 2/3, 2nd number: 8/12
83 - 812 is 21.
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Related: 16/3-8/12 8/3-16/12 8/6-8/12 8/3-8/24 24/3-8/12 8/3-24/12 8/9-8/12 8/3-8/36 40/3-8/12 8/3-40/12 8/15-8/12 8/3-8/60 56/3-8/12 8/3-56/12 8/21-8/12 8/3-8/84
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