Solutions by everydaycalculation.com
1st number: 9/30, 2nd number: 1 15/30
930 - 4530 is -65.
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Related: 18/30-45/30 9/30-90/30 9/60-45/30 9/30-45/60 27/30-45/30 9/90-45/30 9/30-45/90 45/30-45/30 63/30-45/30
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