When you reduce the fraction [tex] \frac{4}{10} [/tex] by 2 you will find that it is simplified to [tex] \frac{2}{5} [/tex]. Along with that,, you can divide the top of the fraction (4) by the bottom of the fraction (10) to find the decimal of the fraction. This means that the correct answer to your question is that [tex] \frac{4}{10} [/tex] = [tex] \frac{2}{5} [/tex] or 0.4 as a decimal.
Let me know if you have any further questions.
:)
