Solutions by everydaycalculation.com
1st number: 12/30, 2nd number: 1 17/18
1230 - 3518 is -13990.
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Related: 24/30-35/18 12/30-70/18 12/60-35/18 12/30-35/36 36/30-35/18 12/90-35/18 12/30-35/54 60/30-35/18 12/30-35/90 84/30-35/18
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