Convert 1/2 into a percentage.

To convert a fraction into a percentage, you multiply the fraction by 100 and add the percentage symbol. For the fraction ( \frac{1}{2} ):

1. Start by dividing 1 by 2, which gives you 0.5.
2. Next, multiply 0.5 by 100: ( 0.5 \times 100 = 50 ).
3. Finally, add the percentage symbol to get 50%.

Thus, ( \frac{1}{2} ) converts to 50%, which is represented as A, making it the correct choice. Understanding this process of converting fractions to percentages is helpful in various mathematical applications, such as finance, statistics, and everyday calculations.