Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 8 4/10
410 - 8410 is -81.
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Related: 8/10-84/10 4/20-84/10 4/10-84/20 12/10-84/10 4/30-84/10 4/10-84/30 20/10-84/10 4/50-84/10 4/10-84/50 28/10-84/10 4/70-84/10 4/10-84/70
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