15 Divided by What Equals 64?
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 15 by to equal 64?
Solving 15 Divided by What Equals 64
Here’s how you would set up this question as an equation:
15
x
=
64
\frac{15}{x} = 64
x 15 = 64
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 15:
15
=
64
∗
x
15 = 64*x
15 = 64 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 64:
15
64
=
x
\frac{15}{64} = x
64 15 = 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
=
0.234
x = 0.234
x = 0.234
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 32 equals 38?
30 divided by what equals 86?
What is 12/3 divided by 92?
What is 4/6 divided by 7/2?
What is 44 divided by 8/13?