Question: A rational number equivalent to $\frac{7}{19}$ is
(a) $\frac{17}{119}$
(b) $\frac{14}{57}$
(c) $\frac{21}{38}$
(d) $\frac{21}{57}$
Solution:
Since, $\frac{7}{19}=\frac{7 \times 3}{19 \times 3}=\frac{21}{57}$
Hence, the correct option is (d).
