To convert the mixed number 3 1/4 into a decimal, we start by separating the whole number from the fraction. The whole number part is 3. Next, we convert the fraction 1/4 into a decimal.
To convert 1/4 to decimal, you can divide 1 by 4, which gives you 0.25. Now, we can add this decimal to the whole number.
So, 3 (the whole number) + 0.25 (the decimal equivalent of 1/4) equals 3.25. Therefore, the decimal representation of 3 1/4 is 3.25.