Solutions by everydaycalculation.com
1st number: 1 5/20, 2nd number: 6/20
2520 - 620 is 1920.
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Related: 50/20-6/20 25/20-12/20 25/40-6/20 25/20-6/40 75/20-6/20 25/20-18/20 25/60-6/20 25/20-6/60 25/20-30/20 25/20-42/20
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