2/5 times what equals 4/1?

Here we will show you how to calculate "what" in this sentence: "2/5 times what equals 4/1?" We start by making this word problem into an algebraic equation where "what" is the variable "x".

(2/5) • (x) = (4/1)

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

((2/5) • (x)) / (2/5) = (4/1) / (2/5)

((2/5) • (x)) / (2/5) leaves x and (4/1) / (2/5) is 10 which means we end up with this x = 10. Therefore, the answer to "2/5 times what equals 4/1?" is as follows:

10

It is always good to double-check your math to make sure you did it right. When we entered 10 for x in this equation (2/5) • (x) = (4/1), we get the following true equation which means our math is correct.

(2/5) • (10) = (4/1)

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