\(17{,}24+(7{,}9-9{,}14)=17{,}24-1{,}24=16\).
\(24{,}16-(3{,}9-14{,}74)=24{,}16-(-10{,}84)=35\).
\(-19{,}47-(-20{,}69-3{,}32)=-19{,}47-(-24{,}01)=4{,}54\).
\(-1{,}8+(-3\frac{1}{7}-5{,}2)=-1{,}8-\frac{22}{7}-5{,}2=-7-\frac{1}{7}=-7\frac{1}{7}\).
\(-\left(9\frac{4}{13}+3\frac{5}{26}\right)+6\frac{4}{13}=-\frac{238}{26}-\frac{83}{26}+\frac{166}{26}=-\frac{155}{26}=-5\frac{25}{26}\).
\(8\frac{17}{39}-\left(7\frac12-4\frac{22}{39}\right)-\left(-12\frac12+4\frac59\right)\)
\(=\frac{329}{39}-\frac{59}{78}+\frac{25}{2}-\frac{41}{9}=\frac{658-59+975-354}{78}=\frac{1220}{78}=\frac{610}{39}=15\frac{25}{39}\).
Ответ: а) 16; б) 35; в) 4,54; г) −7 1/7; д) −5 25/26; е) 15 25/39.