Solutions by everydaycalculation.com
1st number: 1 11/21, 2nd number: 1 1/7
3221 - 87 is 821.
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Related: 64/21-8/7 32/21-16/7 32/42-8/7 32/21-8/14 96/21-8/7 32/21-24/7 32/63-8/7 32/21-8/21 32/21-40/7 32/21-8/35 32/21-56/7 32/21-8/49
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