Secondary I • 3yr.
How to add these 2 fractions:
$$ \frac{2}{5} + \frac{5}{6}$$
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 .
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