Réponses

2013-04-10T13:31:02+02:00

26/78 =  1/3

60/84 =   5/4

48/96=   1/2

28/32 =  7/8

42/14=   6/2

15/27=  5/9

45/22 =  45/22

25/75 =  1/3

100/150=  2/3

54/126 =  3/7

135/165= 9/11

72/120=  3/5

2013-04-10T13:34:00+02:00
26/78=26x1 / 26x3= 1/3
60/84=12x5/12x7=5/7
48/96=47x1/48x2=1/2
28/32=4x7/4x8=7/8
42/14=14x3/14x1=3/1=3
15/27=3x5/3x9/5/9
45/22 n'est pas réductible
25/75=25x1/25x3=1/3
100/150=10x10/10x15=10/15=5x2/5x3=2/3
54/126=6x9/14x9=6/14=3x2/7x2=3/7
135/165=5x27/5x33=27/33=9x3/11x3=9/11
72/120=9x8/15x8=9/15=3x3/3x5=3/5