Réponses

2012-09-11T17:17:52+02:00

A=(2/3)+(5/3)*(4*7)

A=(2/3)+(20/21)

A=(14/21)+(20/21)

A=34/21

 

B=(1/5)-(7/5)*(2/3)

B=(1/5)-(14/15)

B=(3/15)-(14/15)

B=-11/15

 

C=(7/3)-(4/3)/(5/2)

C=(7/3)-(4/3)*(2/5)

C=(7/3)-(8/15)

C=(35/15)-(8/15)

C=27/15

C=9/5

 

D=[4-(1/3)]+(5/4)

D=[(4/1)-(1/3)]+(5/4)

D=[(12/3)-(1/3)]+(5/4)

D=11/3+5/4

D=44/12+15/12

D=59/12