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how to change 1/2 into a whole number

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2 Answers

You can make any fraction into a whole number by multiplying the fraction by the same number in the denominator.  For example, if you multiply 1/3 by 3, you get 1; if you multiply 1/2 by 2, you get 1; if you multiply 2/3 by 3, you would get 2.

I think, though, that what you probably want to know is how to convert a fraction into a decimal.  If that is the case, I think the easiest way to do it is to just divide the numerator by the denominator.  For example 1/2 is the same as 1 divided by 2, which is 0.5; and 1/3 is 1 divided by 3, which is 0.3333333 (the 3 repeats indefinitely).

 

      0 . 3 3 3

    ____________

3  ) 1 . 0 0 0

           9

      ____

           1 0

              9

          ____

              1 0

                 9

... (etc.)

 

 

Courtney, you must have misunderstood your teacher, at least a little.

1/3 is never equal to 3 or any other whole number. However, it is equal to 0.33333... with the 3 repeated forever.

In the same way, 1/2 is never equal to a whole number. It is equal to 0.5, which has a decimal but not a fraction. You could multiply by 0.5 the same way you multiply by 5, except that you might have at least one extra decimal place in the answer.

Example: Suppose you want to multiply 16 by 1/2.  Change the 1/2 to 0.5 and set it up this way:

             16
          X 0.5
____________
             8.0  (or just 8)

Any fraction can be changed into a decimal by dividing the denominator into the numerator and carrying it out as many places as you wish. Just remember to keep track of where the decimal point should be.