#### Answer

$\frac{8}{7}$

#### Work Step by Step

$\frac{31}{21}-\frac{7}{21}=\frac{31-7}{21}=\frac{24}{21}=\frac{24\div3}{21\div3}=\frac{8}{7}$

Published by
Pearson

ISBN 10:
0321825535

ISBN 13:
978-0-32182-553-7

$\frac{8}{7}$

$\frac{31}{21}-\frac{7}{21}=\frac{31-7}{21}=\frac{24}{21}=\frac{24\div3}{21\div3}=\frac{8}{7}$

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