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 2/5 + 3/7 = ???

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I was checking to see whether I correctetly answered this question: 2/5 + 3/7. I decided to look online but different people said different things, some people said the answer was 6/35 and some people said it was 29/35, so which is it? Or is it something different altogether? 

 Mar 1, 2016

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Hi guest

 

,\(\frac{2}{5}+\frac{3}{7}\\ \mbox{before you can add you must have the same number on the denominator (bottom) }\\ =\frac{2*7}{5*7}+\frac{3*5}{7*5}\\ =\frac{14}{35}+\frac{15}{35}\\ =\frac{14+15}{35}\\ =\frac{29}{35}\\\)

 Mar 1, 2016

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