Fraction Basics:
Fractions are a way to represent a part of a whole. They consist of a numerator (top number) and a denominator (bottom number). The numerator represents the number of parts we have, while the denominator represents the total number of equal parts that make up the whole.

Converting a Decimal to a Fraction:
To convert a decimal to a fraction, we can follow these steps:

Step 1: Identify the Place Value
In the given decimal 0.8, the digit 8 is in the tenths place. This means that 0.8 is equivalent to 8/10.

Step 2: Simplify the Fraction
To convert 8/10 to its lowest terms, we need to simplify it by dividing both the numerator and denominator by their greatest common divisor (GCD). In this case, the GCD of 8 and 10 is 2. By dividing both the numerator and denominator by 2, we get:
8 ÷ 2 = 4
10 ÷ 2 = 5

Therefore, the lowest fraction equivalent to 0.8 is 4/5.

Summary:
To convert 0.8 to its lowest fraction:
- Identify the place value of the decimal.
- In this case, 0.8 is equivalent to 8/10, as the digit 8 is in the tenths place.
- Simplify the fraction by dividing both the numerator and denominator by their GCD, which is 2.
- After simplifying, we get the lowest fraction 4/5.