Solutions by everydaycalculation.com
1st number: 4 1/5, 2nd number: 6 3/7
215 - 457 is -7835.
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Related: 42/5-45/7 21/5-90/7 21/10-45/7 21/5-45/14 63/5-45/7 21/15-45/7 21/5-45/21 21/25-45/7 21/5-45/35 21/35-45/7 21/5-45/49
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