Solutions by everydaycalculation.com
1st number: 1/20, 2nd number: 1 4/20
120 - 2420 is -2320.
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Related: 2/20-24/20 1/20-48/20 1/40-24/20 1/20-24/40 3/20-24/20 1/20-72/20 1/60-24/20 1/20-24/60 5/20-24/20 7/20-24/20
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