2/9 plus what equals 1/8?

Here we will show you how to calculate "what" in this sentence: "2/9 plus what equals 1/8?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

2/9 + x = 1/8

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 2/9 on both sides like this:

2/9 - 2/9 + x = 1/8 - 2/9

2/9 - 2/9 + x leaves x and 1/8 - 2/9 is -7/72 which means we end up with x = -7/72. Therefore, the answer to "2/9 plus what equals 1/8?" is as follows:

-7/72

It is always good to double-check your math to make sure you did it right. When we entered -7/72 for x in this equation 2/9 + x = 1/8, we get the following true equation which means our math is correct.

2/9 + -7/72 = 1/8

Fraction Plus What Equals Fraction Calculator
Here you can submit another "a/b plus what equals c/d?" word problem that we can solve with basic algebra.

2/9 plus what equals 1/9?
Go here for the next word problem that we have tackled with math.