Solutions by everydaycalculation.com
1st number: 15/70, 2nd number: 1 8/10
1570 - 1810 is -11170.
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Related: 30/70-18/10 15/70-36/10 15/70-18/20 45/70-18/10 15/70-54/10 15/70-18/30 75/70-18/10 15/70-90/10 15/70-18/50 15/70-18/70
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