Solutions by everydaycalculation.com
1st number: 1/20, 2nd number: 1 6/10
120 - 1610 is -3120.
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Related: 2/20-16/10 1/20-32/10 1/40-16/10 1/20-16/20 3/20-16/10 1/20-48/10 1/60-16/10 1/20-16/30 5/20-16/10 1/20-80/10 1/20-16/50 7/20-16/10 1/20-16/70
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