Solutions by everydaycalculation.com
1st number: 10/15, 2nd number: 1 1/9
1015 - 109 is -49.
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Related: 20/15-10/9 10/15-20/9 10/30-10/9 10/15-10/18 30/15-10/9 10/15-30/9 10/45-10/9 10/15-10/27 50/15-10/9 10/15-50/9 10/75-10/9 10/15-10/45 70/15-10/9 10/15-70/9 10/15-10/63
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