Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 2 9/20
2120 - 4920 is -75.
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Related: 42/20-49/20 21/20-98/20 21/40-49/20 21/20-49/40 63/20-49/20 21/60-49/20 21/20-49/60
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