bsr qui pourrais m expliquer mon exo 12 merci

bonsoir

a ) 7 x 4/7 = 28/7 = 4

b ) 8 x 11/8 = 88 /8 = 11

c) 9 x 5/9 = 45/9 = 5

d) 14 x 9/14 = 126/14 = 9

Bonjour,

7 x 4/7= 4

8 x 11/8= 11

9 x 5/9= 5

14 x 9/14= 9