Examine whether is a terminating decimal. The fraction 17/30.

The denominator 30 can be written as 2 × 3 × 5, which is not in the form 2n × 5m.∴ it is not a terminating decimal.

Q7 of 114 Page 43

Examine whether is a terminating decimal.

The denominator 30 can be written as 2 × 3 × 5, which is not in the form 2ⁿ × 5^m.

∴ it is not a terminating decimal.

Show that any number of the form 4ⁿ, n ∈ N can never end with the digit 0.

The HCF of two numbers is 27 and their LCM is 162. If one of the number is 81, find the other.

First the simplest form of .

Which of the following number are irrational?

a. b.

c. 3.142857 d.

e. π f.