Question

1/30-1/-15=?
Cum sa calculez?

Answer 1

1/30- 1/-15= aduci la acelasi numitor , adica la 30 .Amplifici a prima ecuatie cu 1 , iar a doua cu 2 deoarece 30/15=2.
Primesti 1-2 / -30= -1 /-30= 1/ 30

Answer 2

[tex] \frac{1}{30} - \frac{1}{-15} [/tex]

$\frac{1}{30} + \frac{1}{15}$

$\frac{1+2}{30}$

$\frac{3}{30} = \frac{1}{10}$

succes!!!!!