Bsr pouvez vous m'aider svp merci ​

Réponse:

I = (9/15 +3/10 )÷6/5

= 9/10 ×5/6

=3/2 ×1/2

=3/4

J = 12/7 -407 ×35/12

= 12/7 -5/3

= 1/21

K = (4/5+7/10) ÷ (5/6-5/8)

= 3/2 ÷5/24

=3/2÷24/5

=3×12/5

=36/5

L=6/5+21/5÷14/15

=6/5+21/5×15/14

=6/5+3×3/2

=6/5+9/2

=57/10

bonne chance <33