Solutions by everydaycalculation.com
1st number: 1 1/15, 2nd number: 15/20
1615 - 1520 is 1960.
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Related: 32/15-15/20 16/15-30/20 16/30-15/20 16/15-15/40 48/15-15/20 16/15-45/20 16/45-15/20 16/15-15/60 80/15-15/20 16/15-75/20 16/75-15/20
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