Sagot :
Bonsoir
a)5 sur 12 - 1 sur 4 = 5/12 - 3/12 = 2/12 = 1/6
b)11 sur 7 + 3 sur 8 = 88/56 + 21/56 = 109/56 irréductible
c)5+3 sur 7 = 35/7 + 3/7 = 38/7
d)25 sur 64 x 24 sur 65 = 25 x 24/ 64 x 65 = 5x 3 / 8 x13 = 15/104
a)5 sur 12 - 1 sur 4 = 5/12 - 3/12 = 2/12 = 1/6
b)11 sur 7 + 3 sur 8 = 88/56 + 21/56 = 109/56 irréductible
c)5+3 sur 7 = 35/7 + 3/7 = 38/7
d)25 sur 64 x 24 sur 65 = 25 x 24/ 64 x 65 = 5x 3 / 8 x13 = 15/104
A = 5 -1 = 5 -3 = 2/12 = 1/6
12 4 = 12 12
11 + 3 = 88 +21 = 109
7 8 = 56 56 = 56
5+3 = 35/7 + 3/7 = 38/7
7
25 X 24 = 600 = 60/416 = 30/208 = 15/104
64 65 4160
12 4 = 12 12
11 + 3 = 88 +21 = 109
7 8 = 56 56 = 56
5+3 = 35/7 + 3/7 = 38/7
7
25 X 24 = 600 = 60/416 = 30/208 = 15/104
64 65 4160