Multiplying 1/4 by 4/5 will result in 1/5To multiply fractions, multiply the numerators (top numbers) together and then multiply the denominators (bottom numbers) together. Then, simplify the resulting fraction if needed. [tex]\frac{1}{4} \times \frac{4}{5}[/tex]Multiply both the numerator and denominator[tex]=\frac{1\times4}{4\times5}[/tex][tex]=\frac{4}{20}[/tex]Simplify by dividing both the numerator and the denominator by their GCF (Greatest Common Factor). In this case, their GCF is 4.[tex]\frac{4\div4}{20\div4}[/tex][tex]=\frac{1}{5}[/tex]Therefore, multiplying the fractions 1/4 and 4/5 will result in 1/5.