Saturday, December 1, 2012

Test: Rational Word Problem Question 6






  • First I had to find how many times does 1  3/4  goes into 15   1/4.
    • I made this easier for myself by changing the fractions into decimals.
  • Then I found out that 1.75 goes into 15.25, eight times.
    • This is because 1.75 x 8 = 14 and if you were to multiply by a higher number, your answer will be longer than 15.25. For example 1.75 x 9 = 15.75.
  • This now let's us know that 14.00 m of the plank is cut in equal pieces of 8.
  • Now we have to find out how much of the plank is left over. 
    • We find the solution to this by subtracting the length of the plank which is 15.25 by 14.
    • 15.25 - 14.00 = 1.25 m 
  • So there is 1.25 m left over of the wooden plank.


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