6/4 plus what equals 7/9?

Here we will show you how to calculate "what" in this sentence: "6/4 plus what equals 7/9?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

6/4 + x = 7/9

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 6/4 on both sides like this:

6/4 - 6/4 + x = 7/9 - 6/4

6/4 - 6/4 + x leaves x and 7/9 - 6/4 is -13/18 which means we end up with x = -13/18. Therefore, the answer to "6/4 plus what equals 7/9?" is as follows:

-13/18

It is always good to double-check your math to make sure you did it right. When we entered -13/18 for x in this equation 6/4 + x = 7/9, we get the following true equation which means our math is correct.

6/4 + -13/18 = 7/9

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