Solutions by everydaycalculation.com
1st number: 25/30, 2nd number: 1 18/30
2530 - 4830 is -2330.
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Related: 50/30-48/30 25/30-96/30 25/60-48/30 25/30-48/60 75/30-48/30 25/90-48/30 25/30-48/90
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