Sagot :
Bonjour
Calculer les nombre suivants :
x = 1/6 ; y = 3/5 ; z = - 2/3 ; t = - 4
a) x + y
= 1/6 - 2/3
= 1/6 - (2 x 2) / (3 x 2)
= 1/6 - 4/6
= - 3/6
b) y+t
3/5 - 4
= 3/5 - (4 x 5) / (1 x 5)
= 3/5 - 20/5
= - 17/5
c) z- y
- 4 - 3/5
= (- 4 x 5) / (1 x 5) - 3/5
= - 20/5 - 3/5
= - 23/5
d)-1-Z
- 1 - (- 4) = - 1 + 4 = 3.