Solutions by everydaycalculation.com
1st number: 1 11/24, 2nd number: 1 8/12
3524 - 2012 is -524.
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Related: 70/24-20/12 35/24-40/12 35/48-20/12 35/24-20/24 35/24-60/12 35/72-20/12 35/24-20/36 35/24-20/60 35/24-20/84
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