C'est pour l'exercice n 3

bonjour

h = 5/6 - ( - 23/10) + 3/5
h = 5/6 + 23/10 + 3/5
h = 25/30 + 69/30 + 18/30
h = 112/30

i = 1/3 + 4/3 x - 6/5
i = 1/3  - 24/15
i = 5/15 - 24/15
i = - 19/15

j = ( 1/5 - 3/10) x ( 1/6 + 5/2)
j = ( 2/10 - 3/10) x ( 1/6 + 15/6)
j = - 1/10 x 16/6
j = - 16/60
j = - 4/15

H = 5/6 - - 23/10 + 3/5
H = 5/6 + 23/10 + 3/5
H = 5 x 5 / 6 x 5 + 23 x 3 / 10 x 3 + 3 x 6 / 5 x 6
H = 25/30 + 69/30 + 18/30
H = 112/30
H = 2 x 56 / 2 x 15
H = 56/15

I = 1/3 + 4/3 x - 6/5
I = 1/3 - 24/15
I = 1 x 5 / 3 x 5 - 24/15
I = 5/15 - 24/15
I = - 19/15

J = (1/5 - 3/10) x (1/6 + 5/2)
J = (1 x 2 / 5 x 2 - 3/10) x (1/6 + 5 x 3 / 2 x 3)
J = (2/10 - 3/10) x (1/6 + 15/6)
J = - 1/10 x 16/6
J = - 16/60
J = 4 x - 4 / 4 x 15
J = - 4/15