0.8 as a rational number?

Answer 1

To express 0.8 as a rational number, you can write it as a fraction.

Since 0.8 is equivalent to \( \frac{8}{10} \), you can simplify this fraction 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, 0.8 as a rational number is \( \frac{4}{5} \).