Question

$\frac{1}{2} + \frac{2}{5} = $

Explanation:

Step1: Find a common denominator

The denominators are 2 and 5. The least common denominator is $2\times5 = 10$.
Rewrite the fractions: $\frac{1}{2}=\frac{1\times5}{2\times5}=\frac{5}{10}$, $\frac{2}{5}=\frac{2\times2}{5\times2}=\frac{4}{10}$

Step2: Add the numerators

Add the numerators of the equivalent fractions: $\frac{5}{10}+\frac{4}{10}=\frac{5 + 4}{10}=\frac{9}{10}$

Answer:

$\frac{9}{10}$