Solutions by everydaycalculation.com
1st number: 1 20/30, 2nd number: 15/30
5030 - 1530 is 76.
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Related: 50/60-15/30 50/30-15/60 50/30-45/30 50/90-15/30 50/30-15/90 50/30-75/30
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