a) 1/3 + 5/3 = (1+5)/3 = 6/3 = 2
b) 9/5 - 4/5 = (9-4)/5 = 5/5 = 1
c) 213/12 - 100/12 = (213-100)/12 = 113/12
d) 35/36 * 6/7 = (se simplifica 35 cu 7, sus ramane 5, iar jos la 7 ramane 1; 36 se simplifica cu 6, sus la 6 ramane 1, iar jos 6) = 5/6
e) 1024/81 * 512/27 = 524288/2187
Cred ca mai degraba era impartire decat inmultire.
Daca e impartire, rezolvarea este:
1024/81 : 512/27 = 1024/81 * 27/512 = 2/3
f) 2320/196 : 120/96 = 2320/196 * 96/120 = 580/49 * 4/5 = 464/49
