Final answer:
To express 78% as a fraction, we can write it as 39/50.
Step-by-step explanation:
To express 78% as a fraction, we can write it as 78/100. However, we can simplify this fraction by dividing both the numerator and denominator by their greatest common divisor. In this case, the greatest common divisor of 78 and 100 is 2. Dividing both sides by 2, we get 39/50. Therefore, 78% as a fraction is 39/50.
Learn more about Converting percentages to fractions