Question

Add and simplify:
$\frac{1}{15}+\frac{3}{15}+\frac{5}{15}$

• A. $\frac{1}{2}$
• B. $\frac{5}{3}$
• C. $\frac{3}{5}$
• D. $\frac{8}{15}$

Answer 1

The correct option is C $\frac{3}{5}$

$\frac{1}{15}+\frac{3}{15}+\frac{5}{15}$

Step 1: Add the numerators, put that answer over the common denominator.

$=\frac{\text{Sum of numerators}}{\text{Common denominator}}$

$=\frac{1+3+5}{15}$

$=\frac{4+5}{15}$

$=\frac{9}{15}$

Step 2: Simplify the fraction.

$=\frac{3\times 3}{3\times 5}$

$=\frac{3}{5}$