Solutions by everydaycalculation.com
1st number: 4 0/4, 2nd number: 12 2/4
164 - 504 is -172.
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Related: 32/4-50/4 16/8-50/4 16/4-50/8 48/4-50/4 16/12-50/4 16/4-50/12 80/4-50/4 16/20-50/4 16/4-50/20 16/28-50/4 16/4-50/28
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