Sagot :
bonjour
S = 3 - 5/3 : 3/5 + 3/6
S = 3 - 5/3 * 5/3 + 3 /6
S = 3 - 25/9 + 3 /6
S = 54/18 - 50/18 + 9/18
S = 13 /18
U = 3 /3 + 5/7
U = 21/21 + 15/21
U = 36/21 = 12/7
v = 5/8 - 3/12
V = 15/24 - 6 /24
V = 9 /24 = 3 /8
T = 3/5 : 5 ou 3 : 5 /5 ?
S = 3-5/3: 3/5 + 3/6 = 3 - 5/3 × 5/3 + 3/6 = 3 - 25/9 + 3/6 = 54/18 - 50/18 + 9/18 = 13 /18
donc S= 13/18
U = 3/3 + 5/7 = 21/21 + 15/21 = 36/21 = 12/7
Donc U = 12/7
V= 5/8 - 3/12 = 15/24 - 6/24 = 9/24 = 3/8
Donc V= 3/8 .
T = 3/5/5 = 3 / 5×5 = 3/25
Donc T = 3/25