Solutions by everydaycalculation.com
1st number: 2 1/10, 2nd number: 9/20
2110 - 920 is 3320.
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Related: 42/10-9/20 21/10-18/20 21/20-9/20 21/10-9/40 63/10-9/20 21/10-27/20 21/30-9/20 21/10-9/60 21/10-45/20 21/50-9/20 21/10-63/20 21/70-9/20
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