Réponses

2013-03-11T19:07:15+01:00

1) 1/10 + 2/3 x7/5 

=> 1/10 + 14/15
=> (3+28)/30

=>31/30 

 

2) 29/6 - 3/2 x 7/3

=> 29/6 - 21/6

=>(29-21)/6

=>8/6

=> 4/3

2013-03-11T19:08:59+01:00
1/10+14/15=
1x3/10x3 + 14x2/15x2=
3/30 + 24/30 = 27/30 = 9/10