Question

$\text{The sum of}\frac{7}{19}\text{and}\frac{8}{19}\text{is}.$

• A. $\frac{1}{19}$
• B. $\frac{13}{19}$
• C. $\frac{19}{15}$
• D. $\frac{15}{19}$

Answer 1

The correct option is D $\frac{15}{19}$

Sum of $\frac{7}{19}\text{and}\frac{8}{19}$
$=\frac{7}{19}+\frac{8}{19}$

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

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

$=\frac{7+8}{19}$

$=\frac{15}{19}$

Step 2: Simplify the fraction.
$\frac{15}{\underset{–}{19}}$ is already in its simplest form, as, its numerator and denominator have no common factors other than 1.