
Math Help  Subtract Fractions  Game Tips:  The fraction 2/3 can be subtracted from 5/6 by first converting 2/3 into 4/6 . Then you do the subtraction (5/6)(4/6) to get the answer 1/6 .  In order to subtract two fractions, you convert them to the same denominator (common denominator).  You can convert a fraction by multiplying the top and bottom by the same number. In the above example, 2/3 = (2x2)/(3x2) = 4/6.  Another example: 5/6  1/4 = (5x4)/(6x4)  (6x1)/(6x4) = 20/24  6/24 = 14/24 which reduces to 7/12.  The general rule is a/b  c/d = (adbc)/(bd) .  Single denominators used in this game are less than 20. (Product denominators<300).  It may take a minute to load the game at dialup speeds.  The game can be played using the mouse by itself or using the keyboard by itself.  If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus.  Adjust the game's speed by pressing the + or  key repeatedly. 
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