# Is divison done before mulitpactoin or not?

Guys, isn’t multiplication done before division in JS? Because I was testing around with this code `10 / 2 * 10;`, which the output will equal `50`, so I decided to break it down to find out if multiplication is done before division and will the output be the same? First I multiplied `2 * 10;` and I got `20`, then I divided by the other `10`, like this `10 / 20`, and I got `.5` , or `2`, if it’s done the other way around, but none of them equal to `50`, as it suppose to be. So then I decided to test with dividing first. So here is our code again `10 / 2 * 10;`, so I first did `10 / 2;`, which got me `5`, then I multiplied it `5 * 10;`, and got `50`, the same output as typing the whole thing in. So unless I’m making a mistake here, division goes before multiplication not the other way around, right?

Hello!

Mathematically, I believe you are looking at this incorrectly when you try to do the multiplication first.

`10/2*10` is the same as `10*10/2`. But performing the `2*10` first changes your initial statement to `10/(2*10)`.

Multiplication and Division have the same precedence in JavaScritpt. When left associative operators (most operators) have the same precedence they are executed left to right.

Take a look a the “Table” that lists precedence here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence

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So the multiplication is done first, but I just didn’t break it down correctly?

So you’re saying both multiplication and division have the same priority, so multiplication = division, and it just depends where on the line they are?

Yup, unless you use a higher precedence operator like () to change this.

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