Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 1 3/9
1015 - 129 is -23.
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Related: 20/15-12/9 10/15-24/9 10/30-12/9 10/15-12/18 30/15-12/9 10/15-36/9 10/45-12/9 10/15-12/27 50/15-12/9 10/15-60/9 10/75-12/9 10/15-12/45 70/15-12/9 10/15-84/9 10/15-12/63
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