Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 4/10
1810 - 410 is 75.
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Related: 36/10-4/10 18/10-8/10 18/20-4/10 18/10-4/20 54/10-4/10 18/10-12/10 18/30-4/10 18/10-4/30 90/10-4/10 18/10-20/10 18/50-4/10 18/10-4/50 18/10-28/10 18/70-4/10 18/10-4/70
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