Solutions by everydaycalculation.com
1st number: 2/3, 2nd number: 3 9/15
23 - 5415 is -4415.
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Related: 4/3-54/15 2/6-54/15 2/3-54/30 6/3-54/15 2/9-54/15 2/3-54/45 10/3-54/15 2/15-54/15 2/3-54/75 14/3-54/15 2/21-54/15
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