Solutions by everydaycalculation.com
1st number: 10/30, 2nd number: 1 12/30
1030 - 4230 is -1615.
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Related: 20/30-42/30 10/30-84/30 10/60-42/30 10/30-42/60 10/90-42/30 10/30-42/90 50/30-42/30 70/30-42/30
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