bonjour vous pouvez maider svp ​

Bonjour,

a.

1/4 + 1/4 + 1/4 + 1/4 = 4/4 = 1 donc 4 x 1/4 = 1

b.

4/3 + 4/3 + 4/3 = (4+4+4)/3 = 12/3 = 4 donc 3 x 4/3 = 4

conclusion b x a/b = a

c.

2/5 + 2/5 + 2/5 = (2+2+2)/5 = 6/5 donc 3 x 2/5 = (3x2)/5 = 6/5

d.

2/3 + 2/3 + 2/3 + 2/3 = (2+2+2+2) / 3 = 8/3

conclusion c x a/b = (cxa)/b