Solutions by everydaycalculation.com
1st number: 1 18/24, 2nd number: 1 21/24
4224 - 4524 is -18.
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Related: 84/24-45/24 42/24-90/24 42/48-45/24 42/24-45/48 42/72-45/24 42/24-45/72
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