Calculer les expressions et donner le resultat sous la forme la plus simple. 3\7 ÷ 2 -2\3 ÷ 5 7\4 ÷ -2\3 5\-2 ÷ -3\2 -2\7 ÷ -7\3 5\3 ÷ 5\-2

3/7 : 2
= 3/7 x 1/2
= 3/14

-2/3 : 5
= -2/3 x 1/5
= -2/15

7/4 : -2/3
= 7/4 x -3/2
= -21/8

5/-2 : -3/2
= 5/-2 x -2/3
= 10/6
= 5 x 2 / 2 x 3
= 5/3

-2/7 : -7/3
= -2/7 x -3/7
= 6/49

5/3 : 5/-2
= 5/3 x 2/-5
= -2/3

3/7 ÷ 2 
= 3/7 * 1/2 
= 3/14

-2/3 ÷ 5
= -2/3 * 1/5 
= -2/15

7/4 ÷ -2/3
=7/4 * 3/-2 
=21/-8
=-21/8

5/-2 ÷ -3/2
=5/-2 * 2/-3
=10/6
=5/3

-2/7 ÷ -7/3
=-2/7 * 3/-7
=-6/-49
=6/49

5/3 ÷ 5/-2 
= 5/3 * -2/5
=-10/15
=-2/3