2/5 minus what equals 4/7?

Here we will show you how to calculate "what" in this sentence: "2/5 minus what equals 4/7?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

2/5 - x = 4/7

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 2/5 on both sides like this:

2/5 - 2/5 - x = 4/7 - 2/5

2/5 - 2/5 - x leaves -x and 4/7 - 2/5 is 6/35 which means we end up with -x = 6/35. Then, you multiply each side by -1 to get x = -6/35. Therefore, the answer to "2/5 minus what equals 4/7?" is as follows:

-6/35

It is always good to double-check your math to make sure you did it right. When we entered -6/35 for x in this equation 2/5 - x = 4/7, we get the following true equation which means our math is correct.

2/5 - -6/35 = 4/7

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.

2/5 minus what equals 4/8?
Go here for the next word problem that we have tackled with math.