Sagot :

selimaneb7759

Réponse :

Explications étape par étape :

Bonsoir

2/9 / -5/3 = 2/9 × - 3/5 = (2×(-3)) / (9×5) = (2×(-3)) /(3×3×5) = -2/15

3/5 / 1/5 = 3/5 × 5 = 3

ephtamina890

2/9÷(-5/3)

=2/9×(-3/5)

=-(2×3)/(9×5)

=-6/45

=(-6÷3)/(45÷3)

=-2/15

3/5÷1/5

=3/5×5

=(3×5)/5

=15/5

=(15÷5)/(5÷5)

=3