Solutions by everydaycalculation.com
1st number: 9/20, 2nd number: 4 4/9
920 - 409 is -719180.
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Related: 18/20-40/9 9/20-80/9 9/40-40/9 9/20-40/18 27/20-40/9 9/60-40/9 9/20-40/27 45/20-40/9 9/20-40/45 63/20-40/9 9/20-40/63
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