Réponse:
/ = sur exemple : 1 sur 2
*= multiplier par exemple : 3 multiplier par 3
je n'ai pas réussi le D,E,F de l'exo 3
Ex 1:
a_ 4/6
b_ 44/33
c_ 37/37
d_ 4/28
e_ 26/14
f_ 36/18
g_ 12/27
h_ 14/19
Ex 2:
A= 11/6
B= 17/10
C = 11/9
G= 14/48
H= 10/ 39
Explications étape par étape:
a_ 1/6 + 3/6 = 1+3/6 = 4/6
b_25/33 + 19/33 = 25+19/33 = 44/33
c_15/37 + 22/37 = 15+22/37 = 37/37
d_16/28 - 7/28 - 5/28 = 16-7-5/28 = 4/28
e_31/14 - 5/14 = 31- 5/14 = 26/14
f_17/18 + 19/18 = 17+19/18 = 36/18
g_1/27 + 4/27 + 7/27 = 1+4+7/27 = 12/27
h_13/19 - 5/19 + 6/19 = 14/19
Ex 2:
A= 7/6 + 2/3 = 7/6 + 2*2/3*2 = 7/6 + 4/6 = 7+4/6 = 11/6
B= 3/5 + 11/10 = 3*2/5*2 + 11/10 = 6/10 + 11/10 = 6+11/10 = 17/10
C= 8/9 - 1/3 = 8/9 - 1*3/3*3 = 8/9 - 3/9 = 8-3/9 = 11/9
G= 3/12 + 5/48 = 3*3/12*3 + 5/48 = 9/48 + 5/48 = 9+5/48 = 14/48
H= 7/13 - 11/39 = 7*3/13*3 + 11/39 = 21/39 - 11/39 = 21-11/39 = 10/ 39
