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Ellen bought 5-9 pound of flour.she used 1-2 pound of flour to make pies how much flour did Ellen have left

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randompeeps
Ellen has 4-7 pounds of flour left. 
altavistard
Ilio:  Please use the symbol " / " to denote division.  

Subtract 1/2 lb from 5/9 lb.:
The LCD is 18.  
Thus, 1/2 =9/18  and 5/9 = 10/18.  10/18 -9/18 = 1/18 lb of flour left.

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