Réponse :
E= [tex]\frac{2}{6}+ \frac{-5}{3}*\frac{-3}{2}[/tex]
= 2/6+ -5*-3/3*2
=2/6+ 15/6
= 17/6
F= [tex](\frac{2}{3} +\frac{5}{3}) *\frac{3}{2}[/tex]
= 7/3* 3/2
= 7*3/3*2
=21/6
= 7/2
G= [tex]1+\frac{1}{2} *5-\frac{3}{4}[/tex]
= 1+ 1*5/2 - 3/4
= 1+ 5/2 - 3/4
=1*4/1*4+ 5*2/2*2- 3/4
=4/4+ 10/4- 3/4
= 11/4
H= -3/4*27/17÷ 18/34
= -3*27/ 4*17 ÷ 18/34
= -81/68 * 34/18
= -2754/1224
= -9/4
voila j'espere t'avoir aidé.