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A number multiplied by 2/5 is 3/20, Find the number

1 Answer

4 votes

Answer:

3/8

Step-by-step explanation:

Let the number be x.

A number multiplied by 2/5 = (2/5)x

Therefore:


(2)/(5)x=(3)/(20)

To solve for x, first, we cross-multiply.


\begin{gathered} 2x*20=3*5 \\ 40x=15 \end{gathered}

Next, we divide both sides of the equation by 40.


\begin{gathered} (40x)/(40)=(15)/(40) \\ x=(3)/(8) \end{gathered}

The number is 3/8.

User Jonas Borggren
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