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Rebecca had 9/10 of a yard ribbon. Then she gave 7/20 of a yard to her friend. How much does she have left? Explain your work.

plz help, already overdue, thanks!
3 years ago

Answers

mathhelper
9/10 - 7/20
your LCD will be 20
change 9/10 to 18/20 and go for it, pretty simple
3 years ago

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