Solutions by everydaycalculation.com
1st number: 4/10, 2nd number: 3 2/10
410 - 3210 is -145.
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Related: 8/10-32/10 4/10-64/10 4/20-32/10 4/10-32/20 12/10-32/10 4/10-96/10 4/30-32/10 4/10-32/30 20/10-32/10 4/50-32/10 4/10-32/50 28/10-32/10 4/70-32/10 4/10-32/70
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