(a) Here,

We can write the given number into fraction as follows:

Seven-tenths =

Now,

According to the question,

This fraction can be converted in the form of decimal as follows:

(b) Here,

We can write the given numbers into fraction as follows:

Two tens = 20

And,

Nime-tenths =

It can together be written as

20 +

Now,

According to the question,

This fraction can be converted in the form of decimal as follows:

(c) We know that,

The given number cannot be written in the fraction form

But,

It is already written into decimal form.

Hence,

The given number can be directly written into decimal format as below:

Fourteen point six = 14.6

(d) Here,

We know that,

The given number can not be written in the fraction format

We can write the given numbers as follows:

On hundred = 100

And,

Two ones = 2

It can together be written as

100 + 2

= 102

Now,

According to the question,

This number can be converted in the form of decimal as follows:

102 = 102.0

(e) We know that,

The given number cannot be written in the fraction form

But,

It is already written into decimal form.

Hence,

The given number can be directly written into decimal format as below:

Six hundred point eight = 600.8