Solutions by everydaycalculation.com
1st number: 2 1/10, 2nd number: 4 0/10
2110 - 4010 is -1910.
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Related: 42/10-40/10 21/10-80/10 21/20-40/10 21/10-40/20 63/10-40/10 21/30-40/10 21/10-40/30 21/50-40/10 21/10-40/50 21/70-40/10 21/10-40/70
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