Solutions by everydaycalculation.com
1st number: 12/70, 2nd number: 1 5/10
1270 - 1510 is -9370.
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Related: 24/70-15/10 12/70-30/10 12/70-15/20 36/70-15/10 12/70-45/10 12/70-15/30 60/70-15/10 12/70-75/10 12/70-15/50 84/70-15/10 12/70-15/70
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