Solutions by everydaycalculation.com
1st number: 9/30, 2nd number: 1 18/30
930 - 4830 is -1310.
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Related: 18/30-48/30 9/30-96/30 9/60-48/30 9/30-48/60 27/30-48/30 9/90-48/30 9/30-48/90 45/30-48/30 63/30-48/30
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