Solutions by everydaycalculation.com
1st number: 1 4/8, 2nd number: 5/10
128 - 510 is 11.
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Related: 24/8-5/10 12/16-5/10 12/8-5/20 36/8-5/10 12/8-15/10 12/24-5/10 12/8-5/30 60/8-5/10 12/8-25/10 12/40-5/10 12/8-5/50 84/8-5/10 12/8-35/10 12/56-5/10 12/8-5/70
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