Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 2 9/20
310 - 4920 is -4320.
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Related: 6/10-49/20 3/10-98/20 3/20-49/20 3/10-49/40 9/10-49/20 3/30-49/20 3/10-49/60 15/10-49/20 3/50-49/20 21/10-49/20 3/70-49/20
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