Aidez moi svp je dois rendre pour demain

Bonjour,

10/7 - 4/3

= (10 x 3) / (7 x 3) - (4 x 7) / (3 x 7)

= 30/21 - 28/21

= 2/21

5/11 + 5/3

= (5 x 3) / (11 x 3) + (5 x 11) / (3 x 11)

= 15/33 + 55/33

= 70/33

5/4 - 3/7

= (5 x 7) / (4 x 7) - (3 x 4) / (7 x 4)

= 35/28 - 12/28

= 23/28

13/3 - 9/8

= (13 x 8) / (3 x 8) - (9 x 3) / (8 x 3)

= 104/24 - 27/24

= 77/24

1/6 - 1/8

= (1 x 4) / (6 x 4) - (1 x 3) / (8 x 3)

= 4/24 - 3/24

= 1/24

7/4 + 4/3

= (7 x 3) / (4 x 3) + (4 x 4) / (3 x 4)

= 21/12 + 16/12

= 37/12

4/3 - 7/9

= (4 x 3) / (3 x 3) - 7/9

= 12/9 - 7/9

= 5/9

3/2 + 17/7

= (3 x 7) / (2 x 7) + (17 x 2) / (7 x 2)

= 21/14 + 34/14

= 55/14

13/20 - 1/2

= 13/20 - (1 x 10) / (2 x 10)

= 13/20 - 10/20

= 3/20

3/2 - 1/20

= (3 x 10) / (2 x 10) - 1/20

= 30/20 - 1/20

= 29/20

4/15 + 8/3

= 4/15 + (8 x 5) / (3 x 5)

= 4/15 + 40/15

= 44/15

1/2 + 1/2

= 2/2

= 1