Bonjour
Calcule les fractions et simplifie les :
a = 3/6 + 5/18 = 9/18 + 5/18 = 14/18 = 7/9
b = 3/12 + 7/4 = 3/12 + 21/12 = 24/12 = 2
c = 7/10 + 7/4 = 14/20 + 35/20 = 49/20
d = 7/6 X 5/21 = 35/126 = 5/18
e = -3/16 X 4/-12 = 12/192 = 1/16
f = -27/12 X -8/9 = 243/108 = 9/4.