Solutions by everydaycalculation.com
1st number: 16/30, 2nd number: 1 7/18
1630 - 2518 is -7790.
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Related: 32/30-25/18 16/30-50/18 16/60-25/18 16/30-25/36 48/30-25/18 16/30-75/18 16/90-25/18 16/30-25/54 80/30-25/18 16/30-25/90
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