What Divided by 3 Equals 51?
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 3, equals 51?
Solving What Divided by 3 Equals 51
Here’s how you would set up this question as an equation:
x
3
=
51
\frac{x}{3} = 51
3 x = 51
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 3, resulting in this equation:
x
=
51
∗
3
x = 51*3
x = 51 ∗ 3
Then we simplify and find our answer:
x
=
153
x = 153
x = 153
So, the answer to the question “What divided by 3 equals 51?” is 153.To prove this, we can take the original problem:
x
3
=
51
\frac{x}{3} = 51
3 x = 51
And insert 153 in the place of x:
153
3
=
51
\frac{153}{3} = 51
3 153 = 51
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 53 equals 90?
10 divided by what equals 36?
What is 12/10 divided by 35?
What is 11/1 divided by 20/15?
What is 50 divided by 9/5?