Solutions by everydaycalculation.com
1st number: 18/30, 2nd number: 3 6/30
1830 - 9630 is -135.
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Related: 36/30-96/30 18/60-96/30 18/30-96/60 54/30-96/30 18/90-96/30 18/30-96/90 90/30-96/30
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