Question #15711

1 Answer
Nov 14, 2017

11/20 in decimal form is 0.55.

Explanation:

Use division.
The fraction bar means that you divide the numerator (top number) by the bottom number (denominator).

So, eleven divided by twenty is what we should do.

         _______             
   20 / 1 1           Twenty does not go into eleven, so we put a zero
                         on top, and an 'imaginary' zero behind the eleven 
                         as a rule of division


            0. 5
         _______   We find that 20 goes into '110' five times (20 x 5 
  20 / 1 1 *0*        =100)
        - 1 0  0
        -----------
              1  0


            0. 5
         _______   We find that 20 doesn't go into 10 so we add                                               
  20 / 1 1  0        another zero at the bottom  
        - 1 0 0
        ---------------
              1  0 0

And since 20 goes into 100 perfectly by 5 times:

              0 . 5 5
         _______   We put another 5 to make 0. 55, and perfectly                                
  20 / 1  1   0        completing the division.
        - 1 0  0
        ---------------
              1  0 0
           -   1  0 0
            ------------
                      0