Question

rezolvati va rog frumos

Answer 1

8$\frac{9}{16}$+ $\frac{5}{16}$

$\frac{137}{16}$+ $\frac{5}{16}$= $\frac{142}{16}$=> $\frac{71}{8}$

2$\frac{8}{21}$+ 5$\frac{11}{21}$

$\frac{50}{21}$+ $\frac{116}{21}$= $\frac{166}{21}$

$\frac{9}{11}$- $\frac{5}{22}$= $\frac{18-5}{22}$= $\frac{13}{22}$

$\frac{3}{5}$- $\frac{13}{15}$= $\frac{9-13}{15}$= -$\frac{4}{15}$

Sper să te ajute! ^_^