сравните полученные значения(1/2)+2*1 /2*1/3+(1/3)=

(1/2) + 2 * 1/2 * 1/3 + (1/3) = 1/2 + 2*1*1/2*3 + 1/3 = 1/2 + 2/6 + 1/3 =
= 3/6 + 2/6 + 2/6 = 7/6 или 1 1/6