Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 1 4/20
920 - 2420 is -34.
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Related: 18/20-24/20 9/20-48/20 9/40-24/20 9/20-24/40 27/20-24/20 9/20-72/20 9/60-24/20 9/20-24/60 45/20-24/20 63/20-24/20
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