21 Divided by What Equals 26?
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 21 by to equal 26?
Solving 21 Divided by What Equals 26
Here’s how you would set up this question as an equation:
21
x
=
26
\frac{21}{x} = 26
x 21 = 26
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 21:
21
=
26
∗
x
21 = 26*x
21 = 26 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 26:
21
26
=
x
\frac{21}{26} = x
26 21 = 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
=
0.808
x = 0.808
x = 0.808
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 89 equals 63?
40 divided by what equals 84?
What is 6/12 divided by 91?
What is 14/3 divided by 15/5?
What is 37 divided by 20/18?