Solutions by everydaycalculation.com
1st number: 1 6/10, 2nd number: 12/20
1610 - 1220 is 11.
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Related: 32/10-12/20 16/10-24/20 16/20-12/20 16/10-12/40 48/10-12/20 16/10-36/20 16/30-12/20 16/10-12/60 80/10-12/20 16/10-60/20 16/50-12/20 16/10-84/20 16/70-12/20
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