Question

The simplest form of $63:81$ is

• A. $18:21$
• B. $21:27$
• C. $23:25$
• D. $25:29$

Answer 1

Answer: (B)

The HCF of $63:81$ is 3 .
We divide each term by 3 .
Then, $63:81=\frac{63}{3}:\frac{81}{3}=21:27$
$\therefore$ The simplest form of $63:81$ is $21:27$.