Solutions by everydaycalculation.com
1st number: 15/18, 2nd number: 2 0/18
1518 - 3618 is -76.
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Related: 30/18-36/18 15/18-72/18 15/36-36/18 45/18-36/18 15/54-36/18 15/18-36/54 75/18-36/18 15/90-36/18 15/18-36/90
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