Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 9/16
2120 - 916 is 3980.
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Related: 42/20-9/16 21/20-18/16 21/40-9/16 21/20-9/32 63/20-9/16 21/20-27/16 21/60-9/16 21/20-9/48 21/20-45/16 21/20-9/80 21/20-63/16
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