Solutions by everydaycalculation.com
1st number: 20/30, 2nd number: 2 24/30
2030 - 8430 is -3215.
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Related: 40/30-84/30 20/60-84/30 20/30-84/60 60/30-84/30 20/90-84/30 20/30-84/90
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