Answer
$-\frac{5}{8}$
Work Step by Step
$-\frac{40}{64}=-\frac{40\div8}{64\div8}=-\frac{5}{8}$
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.