Răspuns:
[tex] \frac{5}{3} \times ( \frac{21}{8} - 1 \frac{3}{5} ) = [/tex]
[tex] \frac{5}{3} \times ( \frac{21}{8} - \frac{1 \times 5 + 3}{5} ) = [/tex]
[tex] \frac{5}{3} \times ( ^{5)} \frac{21}{8} - ^{8)} \frac{8}{5} ) = [/tex]
[tex] \frac{5}{3} \times ( \frac{105}{40} - \frac{64}{40} )[/tex]
[tex] \frac{5}{3} \times \frac{41}{40} = [/tex]
[tex] \frac{1}{3} \times \frac{41}{8} = [/tex]
[tex] \frac{41}{24} [/tex]
