Step 1: Start with the fraction 15/10.

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

15 ÷ 10 = 1.5

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

1.5 × 100 = 150.0%

Final Answer: 15/10 as a percentage is 150.0%.