Pouvez vous m aider.....A=6/7:9/5.........B=15/8:(-6)......C=12/35:8/21......D= -18:27/-8.....E=-7/4x11/9......f=15x14/35....G=24/(-35)X(-42)/36......H=-9/8+15/8...I=17/12-11/3.....J=3/4-4/3....H=2+5/6-7:2 calculer et simplifier.......merci

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2014-09-05T13:28:06+02:00
A=6/7:9/5=6/7x5/9=30/63=3X10/3X21=10/21

B=15/8:-6=15/-48=3/-16

C=12/35:8/21=12/35X21/8=252/280=9X28/10X28=9/10

D=-18x-8/27=144/27=16X9/3X9=16/3

E=-77/36

F=210/35=42/7=6

G=-3/7x-7/6=21/42=3/6