Step 1: Start with the fraction 15/19.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

15 ÷ 19 = 0.7895

Step 3: Multiply the result by 100 to get the percentage.

0.7895 × 100 = 78.95%

Final Answer: 15/19 as a percentage is 78.95%.