Solutions by everydaycalculation.com
1st number: 16/21, 2nd number: 11 1/4
1621 - 454 is -88184.
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Related: 32/21-45/4 16/21-90/4 16/42-45/4 16/21-45/8 48/21-45/4 16/63-45/4 16/21-45/12 80/21-45/4 16/21-45/20 16/21-45/28
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