Question

Am nevoie de ajutor va rog frumos!!!!!!!!!!!!!!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

a) =(1·8+7)/8-(1·5+2)/5+2/10-1/10=

⁵⁾15/8-⁸⁾7/5+⁴⁾2/10-⁴⁾1/10=

(75-56+8-4)/40=

23/40=0,575

b) =( -15/18)⁽³-11/12+(32-3)/9-16/6

= -⁶⁾5/6-³⁾11/12+⁴⁾29/9-⁶⁾16/6

= -30/36-33/36+116/36-96/36

=-43/36= - 1,19(4)

c) = 29/30-(25-2)/90+27/5-(31-3)/90

=³⁾29/30-23/90+¹⁸⁾27/5-28/90

=87/90-23/90+486/90-28/90

=522/90= 5,8

d) = -18/36+1/9+(15-1)/90-(125-1)/990

= (-18/36)⁽¹⁸+1/9+14/90-124/990

= -⁴⁹⁵⁾1/2+¹¹⁰⁾1/9+¹¹⁾14/90-124/990

=-495/990+110/990+154/990-124/990

= -355/990=-0,3(58)