Solutions by everydaycalculation.com
1st number: 2 2/9, 2nd number: 7 0/9
209 - 639 is -439.
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Related: 40/9-63/9 20/18-63/9 20/9-63/18 60/9-63/9 20/27-63/9 20/9-63/27 20/45-63/9 20/9-63/45 20/63-63/9
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