Question

Va rog am nevoie de ajutor ! Dau coroana și mă abonez ! Va rog repede ! ​

Answer 1

b.

$- \frac{9}{10} - \frac{7}{12} + \frac{19}{30} + \frac{1}{5}$

$\frac{ - 54 - 35 + 38 + 12}{60}$

$\frac{ - 39}{60} = - \frac{39}{60}$

$- \frac{13}{20}$

d.

$\frac{5}{4} - \frac{4}{5} - \frac{5}{2} + \frac{7}{10}$

$\frac{25 - 16 - 50 + 14}{20}$

$\frac{ - 27}{20} = - \frac{ 27}{20}$

f.

$- \frac{11}{18} - \frac{7}{108} - \frac{14}{3} - \frac{5}{36}$

$- \frac{66 + 7 + 504 + 15}{108}$

$- \frac{592}{108}$

$- \frac{148}{27}$

Sper ca te-am ajutat!