6/8 minus what equals 3/7?

Here we will show you how to calculate "what" in this sentence: "6/8 minus what equals 3/7?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

6/8 - x = 3/7

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 = 3/7 - 6/8

6/8 - 6/8 - x leaves -x and 3/7 - 6/8 is -9/28 which means we end up with -x = -9/28. Then, you multiply each side by -1 to get x = 9/28. Therefore, the answer to "6/8 minus what equals 3/7?" is as follows:

9/28

It is always good to double-check your math to make sure you did it right. When we entered 9/28 for x in this equation 6/8 - x = 3/7, we get the following true equation which means our math is correct.

6/8 - 9/28 = 3/7

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 3/8?
Go here for the next word problem that we have tackled with math.