Question

After how many places will the decimal expansion of the following will terminate 
21
__________
5² × 7 × 2³​

Answer 1

Answer:

We have given the fraction

2

3

×5

4

23457

=

5000

23457

On solving it we get

5000

23457

=4.6914

So the decimal expansion terminated after 4 decimal places.

Answer 2

Answer:

IT TERMINATES AT 3 RD PLACE AS THE HIGHEST POWER IS 3....

THIS IS A SHORTCUT METHOD TO FIND...