Problem
\( =3 \frac{2}{5}+2 \frac{3}{4} \)
Solution
Step 1 ：\( = 3 + \frac{2}{5} + 2 + \frac{3}{4} \)
Step 2 ：\( = 3 + 2 + \frac{2}{5} + \frac{3}{4} \)
Step 3 ：\( = 5 + \frac{8}{20} + \frac{15}{20} \)
Step 4 ：\( = 5 + \frac{23}{20} \)
Step 5 ：\( = 6 \frac{3}{20} \)
