Solutions by everydaycalculation.com
1st number: 16/20, 2nd number: 3 15/20
1620 - 7520 is -5920.
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Related: 32/20-75/20 16/40-75/20 16/20-75/40 48/20-75/20 16/60-75/20 16/20-75/60 80/20-75/20
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