Solutions by everydaycalculation.com
1st number: 18/21, 2nd number: 3 5/9
1821 - 329 is -17063.
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Related: 36/21-32/9 18/21-64/9 18/42-32/9 18/21-32/18 54/21-32/9 18/21-96/9 18/63-32/9 18/21-32/27 90/21-32/9 18/21-32/45 18/21-32/63
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