66 Divided by What Equals 87?
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 66 by to equal 87?
Solving 66 Divided by What Equals 87
Here’s how you would set up this question as an equation:
66
x
=
87
\frac{66}{x} = 87
x 66 = 87
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 66:
66
=
87
∗
x
66 = 87*x
66 = 87 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 87:
66
87
=
x
\frac{66}{87} = x
87 66 = 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
=
0.759
x = 0.759
x = 0.759
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 56 equals 21?
12 divided by what equals 51?
What is 11/17 divided by 17?
What is 3/14 divided by 6/7?
What is 82 divided by 5/13?