What Divided by 20 Equals 15?
Methods
Setting up the problem:
In a problem like this, the “what” means that we’re working with a variable. The most common variable used in math is “x”. So, we could say what number, x, when divided by 20, equals 15?
Solving What Divided by 20 Equals 15
Here’s how you would set up this question as an equation:
x
20
=
15
\frac{x}{20} = 15
20 x = 15
The goal of the problem is to solve for x. To do this we need to change the equation so that x is alone on one side of the equation.In this case, we can do that by multiplying both sides of the equation by 20, resulting in this equation:
x
=
15
∗
20
x = 15*20
x = 15 ∗ 20
Then we simplify and find our answer:
x
=
300
x = 300
x = 300
So, the answer to the question “What divided by 20 equals 15?” is 300.To prove this, we can take the original problem:
x
20
=
15
\frac{x}{20} = 15
20 x = 15
And insert 300 in the place of x:
300
20
=
15
\frac{300}{20} = 15
20 300 = 15
Because this is true, the answer must be correct.
Practice Other Division Problems Like This One
If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too!
What divided by 12 equals 86?
98 divided by what equals 18?
What is 9/7 divided by 17?
What is 18/17 divided by 19/5?
What is 85 divided by 6/2?