Question

Va rog repede am nevoie si de rezolvare

Answer 1

Răspuns:

Sper ca ti-a fost de folos

Answer 2

5.

a.

$\frac{4}{9} \div \frac{2}{5} = \frac{4}{9} \times \frac{5}{2} = \frac{20}{18} = \frac{10}{9}$

b.

$3 \times \frac{1}{2} = \frac{3 \times 2 + 1}{2} = \frac{7}{2}$

$\frac{7}{2} \times \frac{5}{7} = \frac{35}{14}$

6.

a.

$\frac{1}{3} + \frac{3}{4} = \frac{4 + 9}{12} = \frac{13}{12}$

b.

$2 \times \frac{2}{7} = \frac{2 \times 7 + 2}{7} = \frac{16}{7}$

$1 \times \frac{3}{5} = \frac{1 \times 5 + 3}{5} = \frac{8}{5}$

$\frac{16}{7} - \frac{8}{5} = \frac{80 - 56}{35} = \frac{24}{35}$