Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 1 1/15
121 - 1615 is -107105.
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Related: 2/21-16/15 1/21-32/15 1/42-16/15 1/21-16/30 3/21-16/15 1/21-48/15 1/63-16/15 1/21-16/45 5/21-16/15 1/21-80/15 1/21-16/75 7/21-16/15
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