Fractions

Three candidates were running for office. One of them got half of the vote. Another got two fifths of the vote. What fraction did the third candidate get?    

1 / 2  =  5 / 10    

2 / 5  =  4 / 10     add those two fractions   

             9 / 10     is the total of the first two candidates    

So the third candidate got the other 1 / 10 of the votes    

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