says find the least common denominator of each group of fractions .some groups will include more than two fractions.they are 1/2and 1/3,and 1/5?besides 30

Question

anonymous · Answer

Since all of those denominators are prime, the LCD of all of them will be the product of all of them. It must be 30.

diyadiya · Answer

30

anonymous · Answer

wat will the fractions look like

anonymous · Answer

You have to multiply each fraction by 1= a/a where a is the factors it's missing.

anonymous · Answer

i understand for each the denominator is 30 so ,wat are the other fraction numerators ?

anonymous · Answer

Well what version of 1 = a/a do you need to multiply 1/2 by to make the denominator 30?

anonymous · Answer

$$\frac{1}{2} \cdot \frac{a}{a} = \frac{a}{30}$$

What must a be?

anonymous · Answer

\begin{align}\frac{1}{3}\cdot \frac{b}{b} &= \frac{b}{30}\ \frac{1}{5} \cdot \frac{c}{c} &= \frac{c}{30}\end{align}
What must b and c be?

diyadiya · Answer

1/2=15/30
1/3=10/30
1/5=6/30