Solutions by everydaycalculation.com
1st number: 4 1/5, 2nd number: 7 5/7
215 - 547 is -12335.
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Related: 42/5-54/7 21/10-54/7 21/5-54/14 63/5-54/7 21/15-54/7 21/5-54/21 21/25-54/7 21/5-54/35 21/35-54/7 21/5-54/49
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