3.5 as a Fraction

Learn how to convert the decimal number 3.5 to a fraction. We'll show you the answer and walk through the conversion process step by step.

Answer:

3.5 = 3 ¹/₂ or ⁷/₂

3.5 as a fraction is 7/2 or 3 1/2 (mixed number)

Follow these steps to convert 3.5 to a fraction:

Step 1

Start by writing 3.5 as a fraction with 1 as the denominator:

3.5 = 3.5/1

Step 2

Since there are 1 digit(s) after the decimal point, multiply both numerator and denominator by 10:

(3.5 × 10) / (1 × 10) = 35/10

Step 3

Find the Greatest Common Divisor (GCD) of 35 and 10, which is 5. Divide both numerator and denominator by 5:

(35 ÷ 5) / (10 ÷ 5) = 7/2

Step 4

Since 7/2 is an improper fraction (numerator is larger than denominator), we can convert it to a mixed number:

7 ÷ 2 = 3 remainder 1, so 7/2 = 3 1/2

Final Answer: 3.5 = 3 1/2 (mixed number) or 7/2 (improper fraction)