Solutions by everydaycalculation.com
1st number: 1 6/30, 2nd number: 1 10/30
3630 - 4030 is -215.
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Related: 72/30-40/30 36/30-80/30 36/60-40/30 36/30-40/60 36/90-40/30 36/30-40/90
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