Solutions by everydaycalculation.com
1st number: 35/40, 2nd number: 1 6/10
3540 - 1610 is -2940.
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Related: 70/40-16/10 35/40-32/10 35/80-16/10 35/40-16/20 35/40-48/10 35/40-16/30 35/40-80/10 35/40-16/50 35/40-16/70
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