Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 1 12/15
13 - 2715 is -2215.
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Related: 2/3-27/15 1/3-54/15 1/6-27/15 1/3-27/30 1/3-81/15 1/9-27/15 1/3-27/45 5/3-27/15 1/15-27/15 1/3-27/75 7/3-27/15 1/21-27/15
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