For number 2:
3 out of 4 students passed the exam. So you can put this as 3/4 of the students passed the exam.
To find the percentage from a fraction, you divide the numerator by the denominator (3 divided by 4) which is 75%.
So the answer is 75%
For number 4:
36% of people said Yes, write it as a fraction.
36% basically means 36/100. If you simplify this, you will get 9/25.
So the answer is 9/25
For number 6:
If it’s 17 out of every 100, it’s 17/100.
So the answer is 17%
For number 8:
If they go up by 2/5, by what percent is it?
You can find it’s equivalent fraction with 100 as the denominator.
2x20=40
5x20=100
So 2/5 is equal to 40/100.
So the answer is 40%