Question

Factorize the denominators into prime factors and write the decimal form of 7/20

Answer 1

Answer:

Correct option is

D

terminates

When the prime factorization of the denominator of a fraction has only factors of 2 and factors of 5, we can always express the decimal as terminating decimal. Reason is we can always multiply the denominator with required factors and make it to the power of 10 which will always result in a terminating decimal.

For example,

25

1

=

25×4

4

=

100

4

=0.04

Therefore, D is the correct answer.

Answer 2

0.35 is the correct answer.