Answer: 1/25
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.
So here, 4% can be written as the ratio 4 to 100 or 4/100.
Notice however that 40/100 is not in lowest terms so we need to divide the numerator and te denominator by 4 which gives us 1/25.
Therefore, 4% can be written as the fraction 1/25.