Question

vreau doua probleme cu fractii rezolvate prin adunare si scadere.

Answer 1

1/3+2/3=3/3=1
3/2-1/2=2/2=1
Aducere la acelasi numitor:
1/3+1/2=2/6+3/6=5/6
(numitor comun =6)
Scaderea la fel
(1/3+2/3):1/3=?
3/3:1/3=3/3x3/1(simplificam 3 cu 3)=3/1=3 raspuns