Solutions by everydaycalculation.com
1st number: 14/21, 2nd number: 3 12/21
1421 + 7521 is 8921.
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Related: 28/21+75/21 14/42+75/21 14/21+75/42 42/21+75/21 14/63+75/21 14/21+75/63 70/21+75/21 98/21+75/21
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