Solutions by everydaycalculation.com
1st number: 8/15, 2nd number: 2 5/20
815 - 4520 is -10360.
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Related: 16/15-45/20 8/15-90/20 8/30-45/20 8/15-45/40 24/15-45/20 8/45-45/20 8/15-45/60 40/15-45/20 8/75-45/20 56/15-45/20
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