Réponses

2012-11-12T19:20:25+01:00

a) 2/3 + 7/5 =31/5

 

b) 7/8 x - 3/5 = ? ( calculette )

 

c) -4/(5/3) = ?

 

d) (-7/4) - 3( 2/5 ) = ?

 

2012-11-12T19:21:32+01:00

a) 2/3 + 7/5

b) 7/8 X 5/3

c) (1/4) / 1/3 X 5

d) (1/4 X -7) - (2/5 X 3)

 

A toi de faire les calculs :)