Solutions by everydaycalculation.com
1st number: 9/10, 2nd number: 2 5/20
910 - 4520 is -2720.
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Related: 18/10-45/20 9/10-90/20 9/20-45/20 9/10-45/40 27/10-45/20 9/30-45/20 9/10-45/60 45/10-45/20 9/50-45/20 63/10-45/20 9/70-45/20
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