Solutions by everydaycalculation.com
1st number: 5/70, 2nd number: 1 8/10
570 - 1810 is -12170.
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Related: 10/70-18/10 5/70-36/10 5/70-18/20 15/70-18/10 5/70-54/10 5/70-18/30 25/70-18/10 5/70-90/10 5/70-18/50 35/70-18/10 5/70-18/70
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