Solutions by everydaycalculation.com
1st number: 4 5/10, 2nd number: 4 9/10
4510 - 4910 is -25.
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Related: 90/10-49/10 45/10-98/10 45/20-49/10 45/10-49/20 45/30-49/10 45/10-49/30 45/50-49/10 45/10-49/50 45/70-49/10 45/10-49/70
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