Answer:
907/132
Step-by-step explanation:
[tex] - 18 \frac{2}{3} = \frac{ - 52}{3} [/tex]
[tex]20 \frac{3}{4} = \frac{83}{4} [/tex]
[tex]3 \frac{5}{11} = \frac{38}{11} [/tex]
[tex] - \frac{52}{3} + \frac{83}{4} + \frac{38}{11} [/tex]
[tex] \frac{ - 2288 + 2739 + 456}{132} [/tex]
[tex] \frac{907}{132} [/tex]
