Posted by 123 on Sunday, May 26, 2013 at 6:22am.
in a boy's school, 5/8 of the boys play football and 4/7 play rugby.if every boy plays at least one of the two games, find the fraction of the boys who play both

math  MathMate, Sunday, May 26, 2013 at 9:59am
Since the fraction of boys who play the games cannot exceed 1, so
4/7+5/81 is the fraction who plays both games.
5/8+4/7  1 =(35+3256)/56 =(6756)/56=11/56