Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 3 1/5
121 - 165 is -331105.
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Related: 2/21-16/5 1/21-32/5 1/42-16/5 1/21-16/10 3/21-16/5 1/21-48/5 1/63-16/5 1/21-16/15 5/21-16/5 1/21-80/5 1/21-16/25 7/21-16/5 1/21-16/35
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