Jravenv one year ago Help me break down this problem please! screencap in comments

1. Jravenv

2. zepdrix

$\Large\rm \frac{a+2}{4b}-\frac{a-1}{10b}+\frac{a+3}{5b}$

3. zepdrix

Ok I guess we want to start by finding the Least Common Multiple of the denominators :)

4. zepdrix

They all have a single b, so b will be part of our multiple. What else? What's the least common multiple of 4, 5 and 10?

5. Jravenv

20

6. zepdrix

Good good good :) So each fraction needs a bottom of 20b.

7. zepdrix

$\Large\rm \color{royalblue}{\frac{5}{5}}\left(\frac{a+2}{4b}\right)-\color{royalblue}{\frac{2}{2}}\left(\frac{a-1}{10b}\right)+\color{royalblue}{\frac{4}{4}}\left(\frac{a+3}{5b}\right)$Do you see how this step will help us achieve that?

8. Jravenv

I honestly don't sorry