Answer :

To express the fraction [tex]\( \frac{4}{20} \)[/tex] as a percentage, follow these steps:

1. Divide the numerator by the denominator:
[tex]\[ \frac{4}{20} = 0.2 \][/tex]

2. Convert the decimal to a percentage:
To convert a decimal to a percentage, multiply by 100.
[tex]\[ 0.2 \times 100 = 20 \][/tex]

Therefore,
[tex]\[ \frac{4}{20} = 20\% \][/tex]

Now, let's simplify the fraction [tex]\( \frac{4}{20} \)[/tex] to its lowest terms.

3. Find the greatest common divisor (GCD) of the numerator and the denominator:
The GCD of 4 and 20 is 4.

4. Divide both the numerator and the denominator by their GCD:
[tex]\[ \frac{4 \div 4}{20 \div 4} = \frac{1}{5} \][/tex]

So, the simplified fraction of [tex]\( \frac{4}{20} \)[/tex] is [tex]\( \frac{1}{5} \)[/tex].

In summary:
[tex]\[ \frac{4}{20} = 20\% \quad \text{and the simplified form is} \quad \frac{1}{5} \][/tex]