Задача Задача №3739627
А
А
\(\frac{13}{18}<\frac34<\frac79<\frac56<\frac72\).
а) \(\frac5{14}+\frac5{21}=\frac{25}{42}\);
б) \(\frac5{14}-\frac5{21}=\frac5{42}\);
в) \(\frac{17}{30}+\frac{11}{70}=\frac{76}{105}\);
г) \(\frac{17}{30}-\frac{11}{70}=\frac{43}{105}\);
д) \(\frac9{22}+\frac2{121}=\frac{103}{242}\);
е) \(\frac9{22}-\frac2{121}=\frac{95}{242}\).
