Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 1 15/20
920 - 3520 is -1310.
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Related: 18/20-35/20 9/20-70/20 9/40-35/20 9/20-35/40 27/20-35/20 9/60-35/20 9/20-35/60 45/20-35/20 63/20-35/20
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