Solutions by everydaycalculation.com
1st number: 10/12, 2nd number: 2 0/9
1012 - 189 is -76.
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Related: 20/12-18/9 10/12-36/9 10/24-18/9 30/12-18/9 10/12-54/9 10/36-18/9 10/12-18/27 50/12-18/9 10/12-90/9 10/60-18/9 10/12-18/45 70/12-18/9 10/84-18/9 10/12-18/63
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