`d) -5/7 . 2/11 + \frac{-5}{7} + 9/14 + 1 5/7`
`= -10/77 + \frac{-5}{7} + 9/14 + 12/7`
`= -10/77 + ( \frac{-5}{7} + 12/7) + 9/14`
`= -10/77 + 1 + 9/14`
`= -20/154 + 154/154 + 99/154`
`= \frac{-20 + 154 + 99}{154}`
`= \frac{-20 + 154 + 99}{154}`
`= 233/154`