Question

cineva care stie cum se fac?​

Answer 1

1)

OPUSUL:

$\huge - ( - \frac{7}{3} ) = \frac{7}{3}$

INVERSUL:

$\huge - \frac{3}{7}$

MODULUL:

$\huge| - \frac{7}{3} | = \frac{7}{3}$

2)

a) 2,1

b) 12/99 simplificam prin 3 = 4/33

c) 126-12/90 = 114/90 simplificam prin 2 = 57/45