Percentage of a number

Question

How can we find out what percentage 2 gigabytes is of 15 gigabytes?

I am not calculating correctly: 2 gb * x (percentage) = 15 gb x = 15/2

$2\cdot\frac{100}{15}=13.333\dots$ – barak manos Mar 23 '15 at 13:32 — barak manos, Mar 23 '15 at 13:32

score 1 · Accepted Answer · answered Mar 23 '15 at 13:36

1

Let's use the Rule of Three:

The percentage must be to $100$ what $2$ is to $15$. Now $2$ is to $15$ what $\dfrac2{15}$ is to $1$, which is turn is what $\dfrac{200}{15}$ is to $100$. Hence the simplified answer is $\dfrac{40}3\approx13.33\,\%$.

answered Mar 23 '15 at 13:36

Bernard

175,478

score 0 · Answer 2 · answered Mar 23 '15 at 13:32

0

You're working backwards. You want to find the % of 15, so it's 15*x = 2, or x = 2/15

answered Mar 23 '15 at 13:32

Jeff Ledsome

11

1

You found the fraction. It would help if you would explain how to convert it to a percentage. – N. F. Taussig Mar 23 '15 at 14:13

Percentage of a number

2 Answers2