Solutions by everydaycalculation.com
1st number: 1 1/20, 2nd number: 3 2/10
2120 - 3210 is -4320.
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Related: 42/20-32/10 21/20-64/10 21/40-32/10 21/20-32/20 63/20-32/10 21/20-96/10 21/60-32/10 21/20-32/30 21/20-32/50 21/20-32/70
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