Solutions by everydaycalculation.com
1st number: 2 8/10, 2nd number: 4 2/10
2810 - 4210 is -75.
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Related: 56/10-42/10 28/10-84/10 28/20-42/10 28/10-42/20 84/10-42/10 28/30-42/10 28/10-42/30 28/50-42/10 28/10-42/50 28/70-42/10 28/10-42/70
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