Solutions by everydaycalculation.com
1st number: 1 2/10, 2nd number: 2 1/10
1210 - 2110 is -910.
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Related: 24/10-21/10 12/10-42/10 12/20-21/10 12/10-21/20 36/10-21/10 12/10-63/10 12/30-21/10 12/10-21/30 60/10-21/10 12/50-21/10 12/10-21/50 84/10-21/10 12/70-21/10 12/10-21/70
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