Répondre :
A= 1/7-5/7
=-4/7
B=1/2+5/6
=3/6+5/6
=8/6
=4/3
C=2/5-3/4
=8/20-15/20
=-7/20
D=3/4x7/11
=21/44
E=-2/15x 25/6
=-50/60
=-5/6
F=4/7:5/3
=4/7 x 3/5
=12/35
Caluculer et donner le résultats sous la forme la plus simple ;
A= 1/7-5/7;
B=1/2+5/6;
C=2/5-3/4;
D=3/4x7/11;
E=-2/15x 25/6;
F=4/7:5/3.
A= 1/7-5/7
=-4/7
B=1/2+5/6
=3/6+5/6
=8/6
=4/3
C=2/5-3/4
=8/20-15/20
=-7/20
D=3/4x7/11
=21/44
E=-2/15x 25/6
=-50/60
=-5/6
F=4/7:5/3
=4/7 x 3/5
=12/35