What Divided by 4 Equals 45?
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 4, equals 45?
Solving What Divided by 4 Equals 45
Here’s how you would set up this question as an equation:
x
4
=
45
\frac{x}{4} = 45
4 x = 45
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 4, resulting in this equation:
x
=
45
∗
4
x = 45*4
x = 45 ∗ 4
Then we simplify and find our answer:
x
=
180
x = 180
x = 180
So, the answer to the question “What divided by 4 equals 45?” is 180.To prove this, we can take the original problem:
x
4
=
45
\frac{x}{4} = 45
4 x = 45
And insert 180 in the place of x:
180
4
=
45
\frac{180}{4} = 45
4 180 = 45
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 40 equals 67?
51 divided by what equals 56?
What is 6/19 divided by 33?
What is 3/9 divided by 10/16?
What is 48 divided by 15/1?