Solutions by everydaycalculation.com
1st number: 9/30, 2nd number: 1 10/30
930 - 4030 is -3130.
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Related: 18/30-40/30 9/30-80/30 9/60-40/30 9/30-40/60 27/30-40/30 9/90-40/30 9/30-40/90 45/30-40/30 63/30-40/30
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