Answer: 3/10
Step-by-step explanation: To write a percent as a fraction in lowest terms, remember that a percent is a ratio that compares a number to 100. In this case, 15% can be written as the ratio 15 to 100 or 15/100.
Notice however that 15/100 is not in lowest terms so we need to divide the numerator and the denominator by 5 which gives us 3/10.
Therefore, 15% can be written as the fraction 3/10.