Solutions by everydaycalculation.com
1st number: 7 0/6, 2nd number: 7 3/6
426 - 456 is -12.
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Related: 84/6-45/6 42/6-90/6 42/12-45/6 42/6-45/12 42/18-45/6 42/6-45/18 42/30-45/6 42/6-45/30 42/6-45/42
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