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How do you express x as a percentage of y?

2 years ago

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Buck Kshlerin


1 Answer

Brian H Profile Picture
Brian H Verified Sherpa Tutor ✓

Help students achieve their goals by realising their potential.

Let us instead ask: "What is x as a fraction of y"


Q: what is 1 as a fraction of 2?


A: 1/2


So, 1 is a half of 2.


Q: what is 3 as a fraction of 4?


A: 3/4


So, 3 is three-quarters of 4.



Now, a percentage is just the fraction with a denominator of 100.

Let's ask the same questions again.


Q: what is 1 as a fraction of 2?


1/2 = 50/100 = 0.50 - multiplying by 100, we get 50%



Q: what is 3 as a fraction of 4?


3/4 = 75/100 = 0.75 - multiplying by 100, we get 75%



Q: what is x as a percentage of y?


A:


x/y X 100

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