Solutions by everydaycalculation.com
1st number: 28/30, 2nd number: 3 8/30
2830 - 9830 is -73.
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Related: 56/30-98/30 28/60-98/30 28/30-98/60 84/30-98/30 28/90-98/30 28/30-98/90
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