Question

Which of the following is not a fraction equivalent to $\frac{21}{27}$?​

• A. $\frac{14}{18}$
• B. $\frac{7}{9}$
• C. $\frac{28}{36}$
• D. $\frac{14}{19}$

Answer 1

The correct option is D $\frac{14}{19}$

Fractions that have different numerators and denominators but represent the same value are called equivalent fractions.

$\frac{21}{27}=\frac{\left(\frac{21}{3}\right)}{\left(\frac{27}{3}\right)}=\frac{7}{9}=\frac{7\times 2}{9\times 2}=\frac{14}{18}=$
$\frac{14\times 2}{18\times 2}=\frac{28}{36}$