Solutions by everydaycalculation.com
1st number: 8/20, 2nd number: 2 5/20
820 - 4520 is -3720.
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Related: 16/20-45/20 8/20-90/20 8/40-45/20 8/20-45/40 24/20-45/20 8/60-45/20 8/20-45/60 40/20-45/20 56/20-45/20
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