Final answer:
To convert a fraction to a percent, multiply the numerator and denominator by 100.
Step-by-step explanation:
To convert a fraction to a percent, Lena needs to multiply the numerator and denominator of the fraction by 100. This is because a percent is a fraction out of 100. So in this case, Lena needs to multiply both 25 and 4 by 100:
- Numerator: 25 * 100 = 2500
- Denominator: 4 * 100 = 400
Therefore, to find the percent, Lena should multiply the numerator and denominator of the fraction by 100.
Learn more about converting fractions to percent