31/80+(3/16+39/80) помогите

Question

31/80+(3/16+39/80) помогите

Answer 1

31/80+(3/16+39/80)=31/80+(15/80+39/80)=31/80+54/80=85/80=17/16=1 1/16 (одна целая одна шестнадцатая)