Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 2 9/20
410 - 4920 is -4120.
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Related: 8/10-49/20 4/10-98/20 4/20-49/20 4/10-49/40 12/10-49/20 4/30-49/20 4/10-49/60 20/10-49/20 4/50-49/20 28/10-49/20 4/70-49/20
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