Solutions by everydaycalculation.com
1st number: 2/10, 2nd number: 4 9/10
210 - 4910 is -4710.
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Related: 4/10-49/10 2/10-98/10 2/20-49/10 2/10-49/20 6/10-49/10 2/30-49/10 2/10-49/30 2/50-49/10 2/10-49/50 14/10-49/10 2/70-49/10 2/10-49/70
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