Solutions by everydaycalculation.com
1st number: 1 2/3, 2nd number: 6/18
53 + 618 is 21.
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Related: 10/3+6/18 5/3+12/18 5/6+6/18 5/3+6/36 15/3+6/18 5/9+6/18 5/3+6/54 25/3+6/18 5/3+30/18 5/15+6/18 5/3+6/90 35/3+6/18 5/3+42/18 5/21+6/18
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