Solutions by everydaycalculation.com
1st number: 1 19/21, 2nd number: 1 1/7
4021 - 87 is 1621.
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Related: 80/21-8/7 40/21-16/7 40/42-8/7 40/21-8/14 40/21-24/7 40/63-8/7 40/21-8/21 40/21-40/7 40/21-8/35 40/21-56/7 40/21-8/49
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