Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 3 5/10
2120 - 3510 is -4920.
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Related: 42/20-35/10 21/20-70/10 21/40-35/10 21/20-35/20 63/20-35/10 21/60-35/10 21/20-35/30 21/20-35/50 21/20-35/70
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