Answer
$$\frac{13}{35}$$
Work Step by Step
$$\frac{1}{5}+\frac{3}{7}$$
$$\frac{7}{35}+\frac{15}{35}$$
$$\frac{22}{35}$$
$$1-\frac{22}{35}$$
$$\frac{13}{35}$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.