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Mathematics 15 Online
OpenStudy (anonymous):

I need help figuring out how to add or subtract factors with unlike denominators like this one. 3/4 - 2/3

OpenStudy (campbell_st):

here is a simple method for equivalent fractions. |dw:1417115469864:dw| the equivalent numerators are on the diagonals... the denominator is in the lower right square you can use the same method to get equivalent fractions when adding

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