Question

resolva

me ajuda gente ​

Answer 1

a)

$\frac{14}{3} + \frac{9}{4}$

$\frac{56 + 27}{12}$

$\frac{83}{12}$

b)

$- \frac{3}{5} + \frac{7}{10}$

$\frac{-6 + 7}{10}$

$\frac{1}{10}$

c)

$\frac{1}{20} - \frac{9}{4}$

$\frac{1-45}{20}$

$\frac{-44}{20}$

$-\frac{11}{5}$