6/8 minus what equals 2/1?

Here we will show you how to calculate "what" in this sentence: "6/8 minus what equals 2/1?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

6/8 - x = 2/1

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 6/8 on both sides like this:

6/8 - 6/8 - x = 2/1 - 6/8

6/8 - 6/8 - x leaves -x and 2/1 - 6/8 is 1 1/4 which means we end up with -x = 1 1/4. Then, you multiply each side by -1 to get x = -1 1/4. Therefore, the answer to "6/8 minus what equals 2/1?" is as follows:

-1 1/4

It is always good to double-check your math to make sure you did it right. When we entered -1 1/4 for x in this equation 6/8 - x = 2/1, we get the following true equation which means our math is correct.

6/8 - -1 1/4 = 2/1

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

6/8 minus what equals 2/2?
Go here for the next word problem that we have tackled with math.