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Posted by on Monday, September 21, 2009 at 11:38pm.

the gas tank of a car is 2/3 full. a trip uses up 1/4 of the gas in the tank. how full is the tank at the end of the trip?

please include how you got the answer,
thanks

  • math - , Monday, September 21, 2009 at 11:47pm

    2/3 x 1/4 = 2/12 = 1/6

    Or make up a number for the size of th tank. Let's suppose it hols 21 (any unit you wish).
    Then 2/3 x 21 = 14 when we start the trip.
    If we use 1/4 of the 14 then 14 x 1/4 = 3.5 when the trip ends.
    3.5/21 = 1/6

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