How can the fraction 1/2 be expressed as a percentage?

To express the fraction 1/2 as a percentage, you need to understand that a percentage is essentially a fraction out of 100. This means you can convert a fraction into a percentage by multiplying it by 100.

Starting with the fraction 1/2, you multiply the numerator (1) by 100, which gives you 100. Then, you divide that result by the denominator (2).

So, the calculation goes as follows:

1. Multiply the numerator by 100: 1 × 100 = 100

2. Divide this result by the denominator: 100 ÷ 2 = 50

Thus, 1/2 is equivalent to 50%. This is why the correct answer is expressed as B.

Understanding this conversion process is important, as it helps in both mathematical applications and real-life situations, such as understanding discounts, scoring percentages, and more.