Salut!
955/180 +20/3=
191/36 + 20/3=
191/36 + 240/36=
=431/36
=11,97
Succes!
[tex]\it \dfrac{955}{180}{^{^{^{^{^{^{\displaystyle 5)}}}}}}+\dfrac{20}{3} =\dfrac{191}{36} +\dfrac{20}{3}= \dfrac{191+20\cdot12}{36}=\dfrac{191+240}{36}=\boxed{\it \dfrac{431}{36} }[/tex]
