81 Divided by What Equals 22?
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 can we divide 81 by to equal 22?
Solving 81 Divided by What Equals 22
Here’s how you would set up this question as an equation:
81
x
=
22
\frac{81}{x} = 22
x 81 = 22
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, it can be done in two steps. The first step is to multiply both sides by x to isolate 81:
81
=
22
∗
x
81 = 22*x
81 = 22 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 22:
81
22
=
x
\frac{81}{22} = x
22 81 = x
When we simplify the new equation, we can solve for x. In this example, we will round to the nearest three decimal places if that’s needed.
x
=
3.682
x = 3.682
x = 3.682
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 49 equals 83?
47 divided by what equals 66?
What is 19/6 divided by 40?
What is 14/15 divided by 4/3?
What is 23 divided by 18/12?