Solutions by everydaycalculation.com
1st number: 21/60, 2nd number: 1 4/12
2160 - 1612 is -5960.
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Related: 42/60-16/12 21/60-32/12 21/60-16/24 63/60-16/12 21/60-48/12 21/60-16/36 21/60-80/12 21/60-16/60 21/60-16/84
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