How do you change 0.4 into a fraction?

To convert the decimal 0.4 into a fraction, follow these simple steps:

Step 1: Write the Decimal as a Fraction

Start by expressing 0.4 as a fraction. Since there is one digit after the decimal point, you can write it as:

• 0.4 = 4/10

Step 2: Simplify the Fraction

Next, simplify the fraction by finding the greatest common divisor (GCD) of the numerator and the denominator. In this case, both 4 and 10 can be divided by 2:

• 4 ÷ 2 = 2
• 10 ÷ 2 = 5

Final Result

After simplifying, you get:

• 0.4 = 2/5

So, the decimal 0.4 can be expressed as the fraction 2/5.