Question

Va rog dau coroana!

…………………………………….

Answer 1

Răspuns:

77/40 si -23/12

Explicație pas cu pas:

-(3•8+5)/8+76/10-(108/10-(8•4+3)/4

faci calculele,numitor comun 40 si obtii 77/40

b)

-((5•9+4)/9-(6•12+5)/12)+(-3•3+2)/3-5/9

faci calculul si obtii -23/12

Answer 2

$\it a)\ \ = -\dfrac{29}{8}+\dfrac{76}{10}-\dfrac{108}{10}+\dfrac{^{2)}35}{\ 4}=-\dfrac{29}{8}+\dfrac{70}{8}-\dfrac{32}{10}=\dfrac{^{5)}41}{\ 8}-\dfrac{^{4)}32}{\ 10}=\\ \\ \\ =\dfrac{205-120}{40}=\dfrac{77}{40}$