Solutions by everydaycalculation.com
1st number: 6/10, 2nd number: 4 2/10
610 - 4210 is -185.
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Related: 12/10-42/10 6/10-84/10 6/20-42/10 6/10-42/20 18/10-42/10 6/30-42/10 6/10-42/30 30/10-42/10 6/50-42/10 6/10-42/50 42/10-42/10 6/70-42/10 6/10-42/70
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