Solutions by everydaycalculation.com
1st number: 16/30, 2nd number: 1 9/12
1630 - 2112 is -7360.
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Related: 32/30-21/12 16/30-42/12 16/60-21/12 16/30-21/24 48/30-21/12 16/30-63/12 16/90-21/12 16/30-21/36 80/30-21/12 16/30-21/60 16/30-21/84
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