Solutions by everydaycalculation.com
1st number: 1 5/30, 2nd number: 1 8/10
3530 - 1810 is -1930.
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Related: 70/30-18/10 35/30-36/10 35/60-18/10 35/30-18/20 35/30-54/10 35/90-18/10 35/30-18/30 35/30-90/10 35/30-18/50 35/30-18/70
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