Solutions by everydaycalculation.com
1st number: 1 1/15, 2nd number: 1 17/18
1615 - 3518 is -7990.
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Related: 32/15-35/18 16/15-70/18 16/30-35/18 16/15-35/36 48/15-35/18 16/45-35/18 16/15-35/54 80/15-35/18 16/75-35/18 16/15-35/90
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