2 3/8 x 2 3/4 - ( 1 2/3 + 2 ) =

[tex]2 \frac{3}{8} \times 2 \frac{3}{4} - (1 \frac{2}{3} + 2) \\ = \frac{19}{8} \times \frac{11}{4} - ( \frac{5}{3} + \frac{6}{3} ) \\ = \frac{19}{8} \times \frac{11}{4} - \frac{11}{3} \\ = \frac{209}{32} - \frac{11}{3} \\ = \frac{627 - 352}{96} \\ = \frac{275}{96} \\ = 2 \frac{83}{96} [/tex]
Semoga bermanfaat.....
-Prisco