Solutions by everydaycalculation.com
1st number: 2/10, 2nd number: 3 5/10
210 - 3510 is -3310.
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Related: 4/10-35/10 2/10-70/10 2/20-35/10 2/10-35/20 6/10-35/10 2/30-35/10 2/10-35/30 2/50-35/10 2/10-35/50 14/10-35/10 2/70-35/10 2/10-35/70
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