Solutions by everydaycalculation.com
1st number: 1 5/10, 2nd number: 9/20
1510 - 920 is 2120.
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Related: 30/10-9/20 15/10-18/20 15/20-9/20 15/10-9/40 45/10-9/20 15/10-27/20 15/30-9/20 15/10-9/60 75/10-9/20 15/10-45/20 15/50-9/20 15/10-63/20 15/70-9/20
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