Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 4 8/10
410 - 4810 is -225.
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Related: 8/10-48/10 4/10-96/10 4/20-48/10 4/10-48/20 12/10-48/10 4/30-48/10 4/10-48/30 20/10-48/10 4/50-48/10 4/10-48/50 28/10-48/10 4/70-48/10 4/10-48/70
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