Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 4 8/18
1512 - 8018 is -11536.
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Related: 30/12-80/18 15/24-80/18 15/12-80/36 45/12-80/18 15/36-80/18 15/12-80/54 75/12-80/18 15/60-80/18 15/12-80/90 15/84-80/18
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