2/5 minus what equals 3/9?
Here we will show you how to calculate "what" in this sentence: "2/5 minus what equals 3/9?" We start by making this word problem into an algebraic equation where "what" is the variable "x".
2/5 - x = 3/9
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 = 3/9 - 2/5
2/5 - 2/5 - x leaves -x and 3/9 - 2/5 is -1/15 which means we end up with -x = -1/15. Then, you multiply each side by -1 to get x = 1/15. Therefore, the answer to "2/5 minus what equals 3/9?" is as follows:
1/15
It is always good to double-check your math to make sure you did it right. When we entered 1/15 for x in this equation 2/5 - x = 3/9, we get the following true equation which means our math is correct.
2/5 - 1/15 = 3/9
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