Question

Ex 2 rpd dau coroana

Answer 1

Răspuns:

1)

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

$\frac{1}{5} + \frac{2}{5} + \frac{3}{5} = \frac{1 + 2 + 3}{5} = \frac{6}{5} = 1.2$

$\frac{5}{36} + \frac{7}{36} + \frac{15}{36} = \frac{5 + 7 + 15}{36} = \frac{28}{36}$

$\frac{10}{123} + \frac{5}{123} = \frac{10 + 5}{123} = \frac{15}{123}$

Scz voi scrie mai târziu celelalte exerciții.

Nu mai am timp.