Solutions by everydaycalculation.com
1st number: 10/12, 2nd number: 1 2/10
1012 - 1210 is -1130.
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Related: 20/12-12/10 10/12-24/10 10/24-12/10 10/12-12/20 30/12-12/10 10/12-36/10 10/36-12/10 10/12-12/30 50/12-12/10 10/12-60/10 10/60-12/10 10/12-12/50 70/12-12/10 10/12-84/10 10/84-12/10 10/12-12/70
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