Solutions by everydaycalculation.com
1st number: 1 2/10, 2nd number: 12/40
1210 - 1240 is 910.
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Related: 24/10-12/40 12/10-24/40 12/20-12/40 12/10-12/80 36/10-12/40 12/10-36/40 12/30-12/40 60/10-12/40 12/10-60/40 12/50-12/40 84/10-12/40 12/10-84/40 12/70-12/40
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