Secondary I • 2yr.

How to add these 2 fractions:

$$ \frac{2}{5} + \frac{5}{6}$$

Français

Secondary I • 2yr.

How to add these 2 fractions:

$$ \frac{2}{5} + \frac{5}{6}$$

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Hello!

To add two fractions up, it is necessary to put them on the same denominator.

I'll give you an example:

$$ \frac{3}{6} + \frac{5}{7} = \frac{3*7}{6*7}+ \frac{5*6}{7*6} = $$

$$ \frac{21}{42} + \frac{30}{42} = \frac{21+30}{42} = \frac{51}{42} $$

If you are asked to simplify, it will be necessary to find the GCD. In my example, the GCD of 51 and 42 is 3.

So,

$$ \frac{51÷3}{42÷3} = \frac{17}{14} $$

I hope this has been profitable for you .

Now try to practice this with some exercises to familiarize yourself with what you just learned 😊.

Let us know if we can help you with anything else!

Have a good day! :)