Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 1/8
2120 - 18 is 3740.
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Related: 42/20-1/8 21/20-2/8 21/40-1/8 21/20-1/16 63/20-1/8 21/20-3/8 21/60-1/8 21/20-1/24 21/20-5/8 21/20-1/40 21/20-7/8 21/20-1/56
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