Solutions by everydaycalculation.com
1st number: 2 5/20, 2nd number: 2 9/20
4520 - 4920 is -15.
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Related: 90/20-49/20 45/20-98/20 45/40-49/20 45/20-49/40 45/60-49/20 45/20-49/60
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