Chapter 4 - Section 4.6 - Complex Fractions and Review of Order of Operations - Exercise Set - Page 285: 53

$-\frac{11}{40}$

$(\frac{3}{4}\div\frac{6}{5})-(\frac{3}{4}\times\frac{6}{5})$ $=(\frac{3}{4}\times\frac{5}{6})-(\frac{3}{4}\times\frac{6}{5})$ $=(\frac{1}{4}\times\frac{5}{2})-(\frac{3}{2}\times\frac{3}{5})$ $=\frac{5}{8}-\frac{9}{10}$ $=\frac{25}{40}-\frac{36}{40}$ $=-\frac{11}{40}$