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Mathematics 20 Online
OpenStudy (anonymous):

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

OpenStudy (sushi121212):

You have to find a common denominator: 9 18 __ x 2 = __ 10 20 Then, all you have to do is subtract: 18 7 11 __ - __ =__ 20 20 20 Your answer is 11/20!

OpenStudy (anonymous):

Thank You!

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