Calculați a) 3/14+1/7. b)3/4•3/5. c) 2 1/3+1 2/3........va rog din suflet!!!

Răspuns :

a) 3/14+1/7=
    =3/14+2/14=5/14
b) 3/4*3/5=9/20
c) 2 1/3+1 2/3=
    =7/3+5/3=12/3=4
a)3/14+1/7=3+2/14=5/14
b)3/4*3/5=9/20
c)7/3+5/3=12/3=4