Question

How do you write 9/10 as a percent?

Answer 1

First of all, what is 1 percent?

Well, one percent is the same as 0.01 .

It simply means 1 part out of 100. That is 100 symmetrical or equal parts.

In other words, if you get a sheet of paper and divide it into 100 equal parts then take one of those parts, you have 1 percent.

"Percent" in a sense means per hundred because the word "cent" actually means a hundred in latin.

Now, if one percent is 0.01 , ten percent is going to be 0.10 . You need ten 0.01's to make 0.10. If you follow the logic below, you will understand why...

0.01 + 0.01 = 0.02

0.01 + 0.01 + 0.01 = 0.03

0.01 + 0.01 + 0.01 + 0.01 = 0.04

...

0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 = 0.09

0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 + 0.01 = 0.10

etc... etc...

0.01 x 10 = 0.10

Another way to write ten percent is `1/10`. This is because ten percent is in fact `10/100`. It takes `10 x 10` percent to make 100%.

10 x 10% = 100%

`10` is one tenth of `100`, that is why ten percent can also be written as `1/10.`

Now, if `1/10` is ten percent, what is `9/10`?

Well, `9/10` is simply `9 x 1/10`. It's `9` times `10` percent.
`9` times ten percent is `90%`.

Which means that:

`9/10 = 90%`

This is your answer.