Solutions by everydaycalculation.com
1st number: 16/30, 2nd number: 2 0/30
1630 - 6030 is -2215.
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Related: 32/30-60/30 16/60-60/30 48/30-60/30 16/90-60/30 16/30-60/90 80/30-60/30
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