Convert 0.8 to a rational number.

Answer 1

To convert the decimal 0.8 to a rational number, you can express it as a fraction.

0.8 can be written as:

\[ 0.8 = \frac{8}{10} \]

Next, simplify the fraction \( \frac{8}{10} \) by dividing both the numerator and the denominator by their greatest common divisor, which is 2:

\[ \frac{8 \div 2}{10 \div 2} = \frac{4}{5} \]

Thus, the rational number equivalent to 0.8 is:

\[ \frac{4}{5} \]