Question

The ratio $18:21$ can also be written as

• A. $\frac{18}{21}$
• B. $18\text{to}21$
• C. $\frac{6}{7}$
• D. $6:7$

Answer 1

Answer: (A), (B), (C), (D)

$6:7$

Given, the ratio is $18:21.$

$\text{Here, antecedent = 18 and consequent = 21}$

We could write it using the word "to," as ''antecedent to consequent'' which is $18\text{to}21.$

We can write a ratio as a fraction by writing the antecedent of the ratio as the numerator, and the consequent of the ratio as the denominator which is $\frac{18}{21}.$

Simplify and cancel out the common factors, we get
$\frac{18}{21}=\frac{3\times 6}{3\times 7}$
$=\frac{6}{7}$
which can also be written as $6:7.$

Hence, all the options are correct.