Solutions by everydaycalculation.com
1st number: 20/30, 2nd number: 2 3/30
2030 - 6330 is -4330.
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Related: 40/30-63/30 20/60-63/30 20/30-63/60 60/30-63/30 20/90-63/30 20/30-63/90
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