Question

Find the sum 1/7 + 2/(5 ) *

2 points

3/12

3/7

19/35

23

​

Answer 1

Answer:

$\frac{1}{7} + \frac{2}{5} \\ \\ = lcm = 7 \times 5 = 35 \\ \\ = \frac{1}{7} \times \frac{5}{5} = \frac{5}{35} \\ \\ \frac{2}{5} \times \frac{7}{7} = \frac{14}{35} \\ \\ = \frac{14 + 5}{35} = \frac{19}{35}$