What plus 5/9 equals 1/1?

Here we will show you how to calculate "what" in this sentence: "What plus 5/9 equals 1/1?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

x + 5/9 = 1/1

To solve this equation, we want x alone on the left side of the equation so we start by subtracting 5/9 on both sides like this:

x + 5/9 - 5/9 = 1/1 - 5/9

x + 5/9 - 5/9 leaves x and 1/1 - 5/9 is 4/9 which means we end up with x = 4/9. Therefore, the answer to "What plus 5/9 equals 1/1?" is as follows:

4/9

It is always good to double-check your math to make sure you did it right. When we entered 4/9 for x in this equation x + 5/9 = 1/1, we get the following true equation which means our math is correct.

4/9 + 5/9 = 1/1

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