Solutions by everydaycalculation.com
1st number: 3 0/5, 2nd number: 1/20
155 - 120 is 5920.
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Related: 30/5-1/20 15/5-2/20 15/10-1/20 15/5-1/40 45/5-1/20 15/5-3/20 15/5-1/60 75/5-1/20 15/5-5/20 15/25-1/20 15/5-7/20 15/35-1/20
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