Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 4 5/10
310 - 4510 is -215.
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Related: 6/10-45/10 3/10-90/10 3/20-45/10 3/10-45/20 9/10-45/10 3/30-45/10 3/10-45/30 15/10-45/10 3/50-45/10 3/10-45/50 21/10-45/10 3/70-45/10 3/10-45/70
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