Solutions by everydaycalculation.com
1st number: 1 2/12, 2nd number: 16/18
1412 - 1618 is 518.
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Related: 28/12-16/18 14/12-32/18 14/24-16/18 14/12-16/36 42/12-16/18 14/12-48/18 14/36-16/18 14/12-16/54 70/12-16/18 14/12-80/18 14/60-16/18 14/12-16/90 98/12-16/18 14/84-16/18
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