Question

solve the following 3 2/5+1 1/4
i need explanation ​

Answer 1

Answer:

$3\frac{2}{5} + 1\frac{1}{4} \\ \\ = \frac{17}{5} + \frac{5}{4} \\ \\ = lcm = 5 \times 4 = 20 \\ \\ = \frac{17}{5} \times \frac{4}{4} = \frac{68}{20} \\ \\ = \frac{5}{4} \times \frac{5}{5} = \frac{25}{20} \\ \\ = \frac{25 + 68}{20} \\ \\ = \frac{93}{20} \\ \\ = 4\frac{13}{20}$