Question

$\frac{3}{8}+2\frac{1}{4}$

Explanation:

Step1: Convert the mixed - number to an improper fraction

$2\frac{1}{4}=\frac{2\times4 + 1}{4}=\frac{9}{4}$

Step2: Find a common denominator

The common denominator of 8 and 4 is 8. So $\frac{9}{4}=\frac{9\times2}{4\times2}=\frac{18}{8}$

Step3: Add the fractions

$\frac{3}{8}+\frac{18}{8}=\frac{3 + 18}{8}=\frac{21}{8}$

Step4: Convert the improper fraction back to a mixed - number

$\frac{21}{8}=2\frac{5}{8}$

Answer:

$2\frac{5}{8}$