Question

Efectuati
a)(+2/3)+(-1/2)=
b)(-2/3)+(+5/2)=
c)4/5+(-3/4)=
d)(1 1/6)+(+1/9)=
e)(-5/12)+(1/9)=

Answer 1

Ai raspunsurile pe foaie.

Answer 2

a).2/3+(-1/2)=4-3/6=1/6
b).-2/3+5/2=-4+15/6=11/6
c).4/5+(-3/4)=16-15/20=1/20
d).11/6+1/9=99+6/54=105/54
e).-5/12+1/9=-45+12/108=57/108