Solutions by everydaycalculation.com
1st number: 4 1/5, 2nd number: 7 5/10
215 - 7510 is -3310.
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Related: 42/5-75/10 21/10-75/10 21/5-75/20 63/5-75/10 21/15-75/10 21/5-75/30 21/25-75/10 21/5-75/50 21/35-75/10 21/5-75/70
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