Ma ajutati pls?

2 si 3,

2. Calculati in doua moduri:

a)
[tex] \frac{3}{4} \times ( \frac{2}{5} + \frac{7}{3} ) [/tex]

b)
[tex] \frac{2}{5} \times ( \frac{3}{4} + \frac{5}{8} )[/tex]
c)
[tex] \frac{4}{7} \times ( \frac{3}{2} + \frac{21}{4} )[/tex]
d)
[tex] \frac{5}{6} \times ( \frac{12}{7} - \frac{3}{14} )[/tex]


3. Calculati in doua moduri:

a)
[tex] \frac{2}{3} \times \frac{1}{5} + \frac{2}{3} \times \frac{4}{5} [/tex]
b)
[tex] \frac{4}{7} \times \frac{5}{3} + \frac{4}{7} \times \frac{2}{3} [/tex]
c)
[tex] \frac{4}{5} \times \frac{2}{9} + \frac{4}{5} \times \frac{7}{9} [/tex]

d)
[tex] \frac{11}{6} \times \frac{9}{8} - \frac{11}{6} \times \frac{3}{8} [/tex]
e)
[tex] \frac{3}{4} \times \frac{6}{5} - \frac{3}{4} \times \frac{2}{5} [/tex]
f)
[tex] \frac{7}{9} \times \frac{11}{8} - \frac{7}{9} \times \frac{2}{8} [/tex]
Dau coroana... va rog ajutati-ma rpd :(((​