What Divided by 40 Equals 4?
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 40, equals 4?
Solving What Divided by 40 Equals 4
Here’s how you would set up this question as an equation:
x
40
=
4
\frac{x}{40} = 4
40 x = 4
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 40, resulting in this equation:
x
=
4
∗
40
x = 4*40
x = 4 ∗ 40
Then we simplify and find our answer:
x
=
160
x = 160
x = 160
So, the answer to the question “What divided by 40 equals 4?” is 160.To prove this, we can take the original problem:
x
40
=
4
\frac{x}{40} = 4
40 x = 4
And insert 160 in the place of x:
160
40
=
4
\frac{160}{40} = 4
40 160 = 4
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 90 equals 91?
29 divided by what equals 85?
What is 3/15 divided by 4?
What is 19/8 divided by 14/17?
What is 79 divided by 10/2?