My Math Forum Word Problem

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 September 5th, 2008, 03:04 PM #1 Newbie   Joined: Sep 2008 Posts: 2 Thanks: 0 Word Problem Hi An oil can is 4/5 full. If 1/3 of the oil in the can is removed, how full is the can?
 September 5th, 2008, 06:43 PM #2 Senior Member   Joined: Jul 2008 Posts: 895 Thanks: 0 Re: Word Problem What is two thirds of four fifths?
 September 5th, 2008, 07:05 PM #3 Newbie   Joined: Sep 2008 Posts: 2 Thanks: 0 Re: Word Problem It's 8/15.
 September 6th, 2008, 04:47 AM #4 Senior Member   Joined: Jul 2008 Posts: 895 Thanks: 0 Re: Word Problem I do believe you've got it! It would be wise to draw a diagram to scale to see what it actually happening. Rectangles piled on one another should do, representing the volumes of container and liquid. Use squared paper using 15 small squares for the height of the container. Mark off 4/5, then 2/3 of that for the remaining liquid. Then compare the height of liquid to the height of the container. Always look at the numbers. What you are doing is learning how to calculate, rather than measure ...a POWERFUL tool!

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