SOLUTION: sandra spent 2/5 of an hour helping a customer extange an unwanted gift. then she spent 1/2 an hour giving a costumer a refund. what fraction of an hour did she spend helping both
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Question 399622: sandra spent 2/5 of an hour helping a customer extange an unwanted gift. then she spent 1/2 an hour giving a costumer a refund. what fraction of an hour did she spend helping both customer? Answer by solver91311(24713) (Show Source):
