Question

Use the given model to multiply the following:


$\frac{1}{5}\times \frac{1}{4}=$

• A. $\frac{2}{20}$
• B. $\frac{4}{5}$
• C. $\frac{5}{4}$
• D. $\frac{1}{20}$

Answer 1

The correct option is D $\frac{1}{20}$


$\text{Total area}=1\times 1\text{sq. unit}$

$\text{Number of sections}=20$

$\text{Area of each section}=\frac{1}{20}\text{sq. unit}$

$\text{Area of overlapping section}=\frac{1}{20}\times 1=\frac{1}{20}\text{sq. unit}$