Question

Add. Write each sum in the lowest terms.

$$\begin{gathered} \frac{1}{5} \\ +\frac{3}{5} \end{gathered}$$

Answer 1

While adding fraction having, unlike denominators. The least common multiple of the denominators is always the least common denominator.

Also, we can use the product of the denominators to get a common denominator keeping in mind that the denominators are prime.

We have $\frac{1}{5}+\frac{3}{5}$

Since the fractions are like fractions, so we will simply add the numerators and will keep the denominator same

$$\begin{gathered} \frac{1}{5}+\frac{3}{5}=\frac{1+3}{5} \\ =\frac{4}{5} \end{gathered}$$

Therefore the required sum in the lowest term is $\frac{4}{5}$