Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 2 2/20
2120 - 4220 is -2120.
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Related: 42/20-42/20 21/20-84/20 21/40-42/20 21/20-42/40 63/20-42/20 21/60-42/20 21/20-42/60
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