Question

$4\frac{1}{5}-2\frac{1}{4}$

Explanation:

Step1: Convert to improper fractions

$4\frac{1}{5} = \frac{4\times5 + 1}{5} = \frac{21}{5}$, $2\frac{1}{4} = \frac{2\times4 + 1}{4} = \frac{9}{4}$

Step2: Find common denominator (20)

$\frac{21}{5} = \frac{21\times4}{5\times4} = \frac{84}{20}$, $\frac{9}{4} = \frac{9\times5}{4\times5} = \frac{45}{20}$

Step3: Subtract the fractions

$\frac{84}{20} - \frac{45}{20} = \frac{84 - 45}{20} = \frac{39}{20}$

Step4: Convert to mixed number

$\frac{39}{20} = 1\frac{19}{20}$

Answer:

$1\frac{19}{20}$ (or $\frac{39}{20}$)