4/5 minus what equals 2/8?

Here we will show you how to calculate "what" in this sentence: "4/5 minus what equals 2/8?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

4/5 - x = 2/8

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 4/5 on both sides like this:

4/5 - 4/5 - x = 2/8 - 4/5

4/5 - 4/5 - x leaves -x and 2/8 - 4/5 is -11/20 which means we end up with -x = -11/20. Then, you multiply each side by -1 to get x = 11/20. Therefore, the answer to "4/5 minus what equals 2/8?" is as follows:

11/20

It is always good to double-check your math to make sure you did it right. When we entered 11/20 for x in this equation 4/5 - x = 2/8, we get the following true equation which means our math is correct.

4/5 - 11/20 = 2/8

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.

4/5 minus what equals 2/9?
Go here for the next word problem that we have tackled with math.