How do you convert the mixed number 3 1/2 into a decimal?

To convert the mixed number 3 1/2 into a decimal, you need to follow a few simple steps:

1. Identify the whole number and the fraction: In this case, the whole number is 3 and the fraction is 1/2.
2. Convert the fraction to a decimal: To convert 1/2 to a decimal, you divide the numerator (1) by the denominator (2). Therefore, 1 ÷ 2 = 0.5.
3. Add the decimal to the whole number: Now, take the decimal value of 0.5 and add it to the whole number 3: 3 + 0.5 = 3.5.

So, 3 1/2 as a decimal is 3.5.