Question

пять двенадцатых плюс одна третья

Answer 1

$frac{5}{12} + frac{1}{3} = frac{5}{12} + frac{4}{12}= frac{9}{12}= frac{3}{4} =0,75$

Answer 2

 кругосветное  путешествие
5/12 +1/3 =5/(3*5) +1/3 =(1/3)*(5/4 +1) = (1/3)* (1+1/4 +1) =
(1/3)*(2 1/4) = (1/3) * 9/4 = (1*9)/(3*4) =3/4 .  Ура а а !!! 

--- ой  ---
5/12 +1/3 =5/12 +(1*4)/(3*4) = 5/12 +4/12 =(5+4)/12 =9/12 =(3*3)/(3*4) =3/4.       * * * 0,75 * * *