Solutions by everydaycalculation.com
1st number: 1 1/4, 2nd number: 10 4/6
54 - 646 is -11312.
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Related: 10/4-64/6 5/8-64/6 5/4-64/12 15/4-64/6 5/12-64/6 5/4-64/18 25/4-64/6 5/20-64/6 5/4-64/30 35/4-64/6 5/28-64/6 5/4-64/42
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