Verified answer

Bonsoir,

Résultats sous forme de fractions irréductibles :

C = -13/8 + 7/16

C = -26/16 + 7/16

C = -19/16

H = 4/12 - 6/18 + 1

H = 1/3 - 1/3 + 1

H = 1

I = -5/4 + 2/3 - (-7/5)

I = -5/4 + 2/3 + 7/5

I = -15/12 + 8/12 + 7/5

I = -7/12 + 7/5

I = -35/60 + 84/60

I = 49/60

E = 44/105 x 42/66

E = 44/66 x 42/105

E = 4/6 x 42/105

E = 42/6 x 4/105

E = 7 x 4/105

E = 28/105

N = (1/5) / (6 - 4/15)

N = 1/5 / (90/15 - 4/15)

N = 1/5 / 86/15

N = 1/5 x 15/86

N = 15/5 x 1/86

N = 3 x 1/86

N = 3/86