Solutions by everydaycalculation.com
1st number: 4 2/7, 2nd number: 5 5/9
307 - 509 is -8063.
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Related: 60/7-50/9 30/14-50/9 30/7-50/18 90/7-50/9 30/21-50/9 30/7-50/27 30/35-50/9 30/7-50/45 30/49-50/9 30/7-50/63
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