Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 4 5/10
2120 - 4510 is -6920.
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Related: 42/20-45/10 21/20-90/10 21/40-45/10 21/20-45/20 63/20-45/10 21/60-45/10 21/20-45/30 21/20-45/50 21/20-45/70
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