Solutions by everydaycalculation.com
1st number: 4 2/10, 2nd number: 7 2/10
4210 - 7210 is -31.
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Related: 84/10-72/10 42/20-72/10 42/10-72/20 42/30-72/10 42/10-72/30 42/50-72/10 42/10-72/50 42/70-72/10 42/10-72/70
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