Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 3 3/6
121 - 216 is -14542.
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Related: 2/21-21/6 1/21-42/6 1/42-21/6 1/21-21/12 3/21-21/6 1/21-63/6 1/63-21/6 1/21-21/18 5/21-21/6 1/21-21/30 7/21-21/6 1/21-21/42
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