Question

Fill in the following blank:

$\frac{15}{18}=\frac{10}{}$

• A. 4
• B. 16
• C. 8
• D. 12

Answer 1

The correct option is D 12

To satisfy the equality, both the ratios must be equivalent ratios.
$15\times \frac{2}{3}=5\times 2=10$
On multiplying numerator(15) by $\frac{2}{3}$, we get 10. So, we multiply denominator(18) also by $\frac{2}{3}$ to fill in the blank.

$18\times \frac{2}{3}=6\times 2=12$

Thus, we get:
$\frac{15}{18}=\frac{10}{12}$