Question

Express the ratio 15 : 35 in its simplest form

• A. 5 : 7
• B. 3 : 7
• C. 2 : 3
• D. 4 : 5

Answer 1

The correct option is B

3 : 7

The ratio 15 : 35 = $\frac{15}{35}$

Divide both numerator and denominator by 5

$\Rightarrow \frac{15÷5}{35÷5}$

$\Rightarrow \frac{3}{7}$

Hence the lowest form of the ratio 15 : 35 is 3 : 7