Answer:
[tex]-\frac{7}{8}[/tex]
Step-by-step explanation:
1) Use this rule: [tex]a \times \frac{b}{c} =\frac{ab}{c} .[/tex]
[tex]\frac{6\times3}{8} -5\times\frac{5}{8}[/tex]
2) Simplify 6 × 3 to 18.
[tex]\frac{18}{8} -5\times\frac{5}8}[/tex]
3) Simplify [tex]\frac{18}{8}[/tex] to [tex]\frac{9}{4}[/tex].
[tex]\frac{9}{4} -5\times\frac{5}{8}[/tex]
4) Use this rule: [tex]a\times\frac{b}{c}=\frac{ab}{c} .[/tex]
[tex]\frac{9}{4} -\frac{5\times5}{8}[/tex]
5) Simplify 5 × 5 to 25.
[tex]\frac{9}{4} -\frac{25}{8}[/tex]
6) Simplify.
[tex]-\frac{7}{8}[/tex]
