Write the following rational numbers in decimal form.

18/42

= 0.428571428571428571…

So, as we can see 428751 repeats itself so we can write it as

∴

Note: “A important note in every example except 4 we get solution recursive that is because when we divide it the remainder never becomes zero as in example 4 and remember the numbers which are repeated again and again should be given symbol above them.”