LCD 2

The least common denominator of 2/5, 1/2, and 3/4

Correct answer:

n =  20

Step-by-step explanation:

$$\begin{gathered} n=LCD(2\mathrm{/}5,1\mathrm{/}2,3\mathrm{/}4) \\ 5\mathrm{.}\mathrm{.}\mathrm{.}\text{ prime number } \\ 2\mathrm{.}\mathrm{.}\mathrm{.}\text{ prime number } \\ 4=2^2 \\ LCM(5,2,4)=2^2\cdot 5=20 \\ n=LCM(5,2,4)=20 \end{gathered}$$

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