What plus 4/5 equals 5/9?

Here we will show you how to calculate "what" in this sentence: "What plus 4/5 equals 5/9?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

x + 4/5 = 5/9

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:

x + 4/5 - 4/5 = 5/9 - 4/5

x + 4/5 - 4/5 leaves x and 5/9 - 4/5 is -11/45 which means we end up with x = -11/45. Therefore, the answer to "What plus 4/5 equals 5/9?" is as follows:

-11/45

It is always good to double-check your math to make sure you did it right. When we entered -11/45 for x in this equation x + 4/5 = 5/9, we get the following true equation which means our math is correct.

-11/45 + 4/5 = 5/9

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