Please help with number 3

9514 1404 393
Answer:
13/8
Step-by-step explanation:
Put the numbers in the formula and do the arithmetic.
[tex]\dfrac{4\dfrac{2}{3}-\left(-1\dfrac{5}{6}\right)}{-7\dfrac{3}{4}-(-11.75)}=\dfrac{6.5}{4}=\boxed{\dfrac{13}{8}}[/tex]