Solutions by everydaycalculation.com
1st number: 2 1/10, 2nd number: 7 2/10
2110 - 7210 is -5110.
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Related: 42/10-72/10 21/20-72/10 21/10-72/20 63/10-72/10 21/30-72/10 21/10-72/30 21/50-72/10 21/10-72/50 21/70-72/10 21/10-72/70
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