Solutions by everydaycalculation.com
1st number: 4 2/7, 2nd number: 4 4/9
307 - 409 is -1063.
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Related: 60/7-40/9 30/7-80/9 30/14-40/9 30/7-40/18 90/7-40/9 30/21-40/9 30/7-40/27 30/35-40/9 30/7-40/45 30/49-40/9 30/7-40/63
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