Solutions by everydaycalculation.com
1st number: 2 1/10, 2nd number: 2 5/20
2110 - 4520 is -320.
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Related: 42/10-45/20 21/10-90/20 21/20-45/20 21/10-45/40 63/10-45/20 21/30-45/20 21/10-45/60 21/50-45/20 21/70-45/20
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