Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 3 4/15
13 - 4915 is -4415.
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Related: 2/3-49/15 1/3-98/15 1/6-49/15 1/3-49/30 1/9-49/15 1/3-49/45 5/3-49/15 1/15-49/15 1/3-49/75 7/3-49/15 1/21-49/15
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