[tex] \frac{11}{21} \times \frac{7}{10} + \frac{75}{16} \times \frac{8}{45} [/tex]
[tex] = \frac{11 \times 7}{21 \times 10} + \frac{75 \times 8}{16 \times 45} [/tex]
[tex] = \frac{11 \times 1}{3 \times 10} + \frac{5 \times 1}{2 \times 3} [/tex]
[tex] = \frac{11}{30} + \frac{5}{6} [/tex]
[tex] = \frac{11}{30} + \frac{25}{30} [/tex]
[tex] = \frac{11 + 25}{30} [/tex]
[tex] = \frac{36}{30} [/tex]
[tex] = \frac{6}{5} [/tex]
