Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 3 3/7
121 - 247 is -7121.
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Related: 2/21-24/7 1/21-48/7 1/42-24/7 1/21-24/14 3/21-24/7 1/21-72/7 1/63-24/7 1/21-24/21 5/21-24/7 1/21-24/35 7/21-24/7 1/21-24/49
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