What is 2/5 as a decimal?
A decimal number can be defined as a number whose whole number part and the fractional part is separated by a decimal point.
Answer: 2/5 as a decimal is 0.4
Let's write 2/5 as a decimal using two methods.
Explanation:
Method 1: Writing 2/5 as a decimal using division method
To convert any fraction to decimal form, we just need to divide its numerator by denominator.
Here, the fraction is 2/5 which means we need to perform 2 ÷ 5
This gives the answer as 0.4. So, 2/5 as a decimal is 0.4.
Method 2: Writing 2/5 as a decimal by converting the denominator to powers of 10
We will multiply the numerator and denominator with a number to make the denominator a power of 10.
2/5 = (2 × 2) / (5 × 2) = 4/10
Now, move the decimal towards left as many places as the number of zeroes are there in the denominator which is a power of 10.
Decimal moved one place towards left as the denominator was 10. Therefore, 4/10 = 0.4. This means 2/5 as a decimal is 0.4.
Irrespective of the methods used, the answer to 2/5 as a decimal will always remain the same.
You can also verify your answer using Cuemath's Fraction to Decimal Calculator.