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A) \[0.4\]

B) \[1.5\]

C) \[25.75\]

D) \[0.072\]

E) \[1.249\]

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A) 0.4

Here \[0.4\] is the decimal number, the first decimal number changes into a fraction.

For that, multiply and divide by \[10\].

$ \Rightarrow 0.4 = \dfrac{{0.4 \times 10}}{{10}}$

Multiply the numerator we get,

$ \Rightarrow 0.4 = \dfrac{4}{{10}}$

On some simplification we get,

$ \Rightarrow 0.4 = \dfrac{4}{{10}} = \dfrac{2}{5}$

It cannot be reduced further, \[0.4\] is a decimal number and its simplest form of fraction is \[\dfrac{2}{5}\].

B) 1.5

Here, \[1.5\] is a decimal number,

For that, multiply and divide by \[10\]

$ \Rightarrow 1.5 = \dfrac{{1.5 \times 10}}{{10}}$

Multiply the numerator we get,

$ \Rightarrow 1.5 = \dfrac{{15}}{{10}}$

On some simplification \[\dfrac{{15}}{{10}}\] as

$ \Rightarrow 1.5 = \dfrac{3}{5}$

It cannot be reduced further, \[1.5\] is a decimal number and its simplest form of fraction is \[\dfrac{3}{5}\].

C) 25.75

Here, \[25.75\] is a decimal number,

For that, multiply and divide by \[100\].

$ \Rightarrow 25.75 = \dfrac{{25.75 \times 100}}{{100}}$

Multiply the numerator and we get,

$ \Rightarrow 25.75 = \dfrac{{2575}}{{100}}$

On some simplification we get,

$ \Rightarrow 25.75 = \dfrac{{515}}{{20}}$

$ \Rightarrow 25.75 = \dfrac{{103}}{4}$

It cannot be reduced further, \[25.75\] is a decimal number and its simplest form of fraction is \[\dfrac{{103}}{4}\].

D) 0.072

Here, \[0.072\] is a decimal number,

For that, multiply and divide by \[1000\].

\[ \Rightarrow 0.072 = \dfrac{{0.072 \times 1000}}{{1000}}\]

Multiply the numerator term and we get,

$ \Rightarrow 0.072 = \dfrac{{72}}{{1000}}$

On some simplification we get,

$ \Rightarrow 0.072 = \dfrac{{18}}{{250}}$

$ \Rightarrow 0.072 = \dfrac{9}{{125}}$

It cannot be reduced further, \[0.072\] is a decimal number and its simplest form of fraction is \[\dfrac{9}{{125}}\].

E) 1.249

Here, \[1.249\] is a decimal number,

For that, multiply and divide by \[1000\].

$ \Rightarrow 1.249 = \dfrac{{1.249 \times 1000}}{{1000}}$

Multiply by numerator

$ \Rightarrow 1.249 = \dfrac{{1249}}{{1000}}$

It cannot be reduced further, \[1.249\] is a decimal number and its simplest form of fraction is \[\dfrac{{1249}}{{1000}}\].