Posted by jordan 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  DrBob222, 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