Solutions by everydaycalculation.com
1st number: 15/30, 2nd number: 1 1/15
1530 - 1615 is -1730.
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Related: 15/30-32/15 15/60-16/15 15/30-16/30 45/30-16/15 15/30-48/15 15/90-16/15 15/30-16/45 75/30-16/15 15/30-80/15 15/30-16/75
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