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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 = (ad-bc)/(bd) . - Single denominators used in this game are less than 20. (Product denominators<300). - It may take a minute to load the game at dial-up 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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