Question

calcule: a) (2/3+1/2)-1/ b) (3/2+1/3)-1/2 c) (7/2+1/4+1)-3/8 d) (2+1/2)-(1-1/4)

Answer 1

a-  4/6+3/6=7/6 ou 7/36
b-  9/6+2/6=11/6 ou 11/36
c-14/4+1/4+4/4= 19/4 ou 19/12
d-2.(2+1)-4-1
4+2-4-1
1 
S={1}