Solutions by everydaycalculation.com
1st number: 4/30, 2nd number: 3 9/12
430 - 4512 is -21760.
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Related: 8/30-45/12 4/30-90/12 4/60-45/12 4/30-45/24 12/30-45/12 4/90-45/12 4/30-45/36 20/30-45/12 4/30-45/60 28/30-45/12 4/30-45/84
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