Answer:
g. 52%
h. 28%
i. 19%
j. 75%
k. 95%
l. 88%
Step-by-step explanation:
g. 13/25
The denominator is currently 25. We must multiply it by 4 to reach 100. By converting the denominator to 100, the numerator will give us the answer to the percentage. However, when multiplying one side of the fraction (the denominator), we must also do the same to the other side of the fraction (the numerator).
Hence:
13 × 4 / 25 × 4
52/100
Since the denominator is 100, we can confidently say the answer is 52%
h. 7/25
Multiply by the numerator and the denominator by 4 so that the denominator equals 100.
7 × 4 / 25 × 4
28/100
28%
i. 19/100
The denominator for this fraction is 100, meaning the percentage is the numerator:
19%
j. 3/4
To get from 4 to 100, we must multiply by 25. What we do to the denominator, we must do to the numerator.
3 × 25 / 4 × 25
75/100
75%
k. 19/20
In order to change the denoninator to 100, multiply the denominator by 5 (20 × 5 = 100). Multiply by 5 to the numerator too to get the percentage.
19 × 5 / 20 × 5
95/100
95%
l. Out of 25 questions, Maria answered 22 correctly. If we write this as a fraction, we would put the total number (of questions) as the denominator with the correctly answered (number of questions) as the numerator:
22/25
We have to convert the denominator to read as 100 instead of 25. To do so, we must multiply 25 by 4. Whatever we do to the denominator, we must do to the numerator which means multiply the numerator by 4 as well.
22 × 4 / 25 × 4
88/100
88%
