Solutions by everydaycalculation.com
1st number: 21/24, 2nd number: 1 2/6
2124 - 86 is -1124.
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Related: 42/24-8/6 21/24-16/6 21/48-8/6 21/24-8/12 63/24-8/6 21/24-24/6 21/72-8/6 21/24-8/18 21/24-40/6 21/24-8/30 21/24-56/6 21/24-8/42
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