Solutions by everydaycalculation.com
1st number: 4 0/4, 2nd number: 4 1/12
164 - 4912 is -112.
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Related: 32/4-49/12 16/4-98/12 16/8-49/12 16/4-49/24 48/4-49/12 16/12-49/12 16/4-49/36 80/4-49/12 16/20-49/12 16/4-49/60 16/28-49/12 16/4-49/84
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