Solutions by everydaycalculation.com
1st number: 2 8/10, 2nd number: 8/10
2810 - 810 is 21.
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Related: 56/10-8/10 28/10-16/10 28/20-8/10 28/10-8/20 84/10-8/10 28/10-24/10 28/30-8/10 28/10-8/30 28/10-40/10 28/50-8/10 28/10-8/50 28/10-56/10 28/70-8/10 28/10-8/70
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