Non-Terminating decimals - These are thedecimal number that goes on forever.
While expressing a fraction in decimal form, when we perform division we get soon remainder. If the division process does not end, i.e, then such decimal numbers are know at Non-terminating decimals.
E.g : 2.666666
Terminating decimals - A decimal number that has a digit which do not go on forever is called terminating decimals.
E.g : 0.25