Write 4/5 as a decimal.
Understand the Problem
The question is asking to convert the fraction 4/5 into its decimal form. To do this, we divide the numerator (4) by the denominator (5). The resulting decimal will provide the answer.
Answer
The decimal form of the fraction $\frac{4}{5}$ is $0.8$.
Answer for screen readers
The decimal form of the fraction $\frac{4}{5}$ is $0.8$.
Steps to Solve

Set up the division We need to divide 4 by 5 to convert the fraction into decimal form, which can be expressed as $4 \div 5$.

Perform the division Now, we perform the division: $0.8$ because $5$ goes into $4$ zero times, and into $40$ (after multiplying by 10) it goes exactly $8$ times.

Interpret the result The result of the division gives us the decimal equivalent of the fraction. Thus, $4/5 = 0.8$.
The decimal form of the fraction $\frac{4}{5}$ is $0.8$.
More Information
Converting fractions to decimals is a common operation in mathematics, often used to simplify calculations or when comparing values.
Tips
 Forgetting to add a decimal point and zero: When dividing, if the initial division does not work, you should remember to add a decimal point and extend the number with zeros.
 Incorrect division: Make sure to carefully perform the division to avoid errors in the result.