Ryan has 6 Yankees baseball cards , 5 Dodgers cards, and 7 Braves cards. What fraction of the cards are Yankees cards ?
+349 Fraction of Yankees cards = \({yankeesCards\over totalCards}\) = \({6\over 6+5+7}\) = \({6\over18}={1\over3}\). 
+349 Fraction of Yankees cards = \({yankeesCards\over totalCards}\) = \({6\over 6+5+7}\) = \({6\over18}={1\over3}\).
