Solutions by everydaycalculation.com
1st number: 15/70, 2nd number: 1 6/10
1570 - 1610 is -9770.
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Related: 30/70-16/10 15/70-32/10 15/70-16/20 45/70-16/10 15/70-48/10 15/70-16/30 75/70-16/10 15/70-80/10 15/70-16/50 15/70-16/70
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