Solutions by everydaycalculation.com
1st number: 9/70, 2nd number: 1 8/10
970 - 1810 is -11770.
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Related: 18/70-18/10 9/70-36/10 9/70-18/20 27/70-18/10 9/70-54/10 9/70-18/30 45/70-18/10 9/70-90/10 9/70-18/50 63/70-18/10 9/70-18/70
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