Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 1 4/10
1512 - 1410 is -320.
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Related: 30/12-14/10 15/12-28/10 15/24-14/10 15/12-14/20 45/12-14/10 15/12-42/10 15/36-14/10 15/12-14/30 75/12-14/10 15/12-70/10 15/60-14/10 15/12-14/50 15/12-98/10 15/84-14/10 15/12-14/70
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