Solutions by everydaycalculation.com
1st number: 4 2/3, 2nd number: 3/12
143 - 312 is 5312.
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Related: 28/3-3/12 14/3-6/12 14/6-3/12 14/3-3/24 42/3-3/12 14/3-9/12 14/9-3/12 14/3-3/36 70/3-3/12 14/3-15/12 14/15-3/12 14/3-3/60 98/3-3/12 14/3-21/12 14/21-3/12 14/3-3/84
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