Solutions by everydaycalculation.com
1st number: 10/90, 2nd number: 2 1/10
1090 - 2110 is -17990.
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Related: 20/90-21/10 10/90-42/10 10/90-21/20 30/90-21/10 10/90-63/10 10/90-21/30 50/90-21/10 10/90-21/50 70/90-21/10 10/90-21/70
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