prosze o obliczenie 4/5+1/10=,1/6+2/3=,8/9-1/3=,1cala3/10-1/5=,. Znajdz wyniki dzialan 1/2+1/4=,3/4+1/2,2cale3/4-1/2=,1cala1/2-1/2=,2cale1/2-3/4=,3cale3/4+2cale1/2=,,15calych1/2+6calych3/4== 12calych1/4-8calych1/2== PROSZE O POMOC