Solutions by everydaycalculation.com
1st number: 4 2/10, 2nd number: 3/10
4210 - 310 is 3910.
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Related: 84/10-3/10 42/10-6/10 42/20-3/10 42/10-3/20 42/10-9/10 42/30-3/10 42/10-3/30 42/10-15/10 42/50-3/10 42/10-3/50 42/10-21/10 42/70-3/10 42/10-3/70
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