Solutions by everydaycalculation.com
1st number: 1 6/10, 2nd number: 2 1/10
1610 - 2110 is -12.
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Related: 32/10-21/10 16/10-42/10 16/20-21/10 16/10-21/20 48/10-21/10 16/10-63/10 16/30-21/10 16/10-21/30 80/10-21/10 16/50-21/10 16/10-21/50 16/70-21/10 16/10-21/70
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