Solutions by everydaycalculation.com
1st number: 9/10, 2nd number: 7 2/10
910 - 7210 is -6310.
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Related: 18/10-72/10 9/20-72/10 9/10-72/20 27/10-72/10 9/30-72/10 9/10-72/30 45/10-72/10 9/50-72/10 9/10-72/50 63/10-72/10 9/70-72/10 9/10-72/70
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