Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 1 12/20
920 - 3220 is -2320.
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Related: 18/20-32/20 9/20-64/20 9/40-32/20 9/20-32/40 27/20-32/20 9/20-96/20 9/60-32/20 9/20-32/60 45/20-32/20 63/20-32/20
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