Solutions by everydaycalculation.com
1st number: 3 3/9, 2nd number: 6 6/9
309 - 609 is -103.
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Related: 60/9-60/9 30/18-60/9 30/9-60/18 90/9-60/9 30/27-60/9 30/9-60/27 30/45-60/9 30/9-60/45 30/63-60/9 30/9-60/63
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