Question

va rog frumos stiu ca trebe amplificate dar bush cu ce

Answer 1

a) -4/5

b) -1/9 +21/9=20/9 (am aplificat cu 3 la 7/3)

c) 3/8 -10/8=-7/8 (am amplificat cu 2 la -5/4)

Answer 2

a)(-1/5)+(-3/5)=-4/5
b)(-1/9)+7/3=(-1/9)+3x(7/3)=(-1/9)+21/9=20/9
c)3/8+(-5/4)=3/8+2x(-5/4)=3/8+(-10/8)=-7/8
Sper ca te am ajutat!