Question

Exercícios: na foto me ajudem por favor ​

Answer 1

Resposta:

a) $\frac{1 + 3 + 4}{10} = \frac{8}{10} = \frac{4}{5}$

b) $\frac{4}{5} + \frac{3}{4} = \frac{16 + 15}{20} = \frac{31}{20}$

c) $\frac{3}{5} - \frac{1}{2} = \frac{6 - 5}{10} = \frac{1}{10}$

d) $\frac{5}{2} + \frac{11}{5} = \frac{25 + 22}{10} = \frac{47}{10}$

e) $\frac{5}{8} - \frac{2}{6} = \frac{15 - 8}{24} = \frac{7}{24}$

f) $\frac{1}{6} + \frac{3}{8} + \frac{2}{3} = \frac{4 + 9 + 16}{24} = \frac{29}{24}$

g) $\frac{7}{9} - \frac{5}{12} = \frac{84 - 45}{108} = \frac{39}{108} = \frac{13}{36}$

h) $\frac{4}{9} + \frac{1}{3} + \frac{5}{6} = \frac{16 + 12 + 30}{36} = \frac{58}{36} = \frac{29}{18}$

i) $\frac{8}{15} - \frac{3}{15} = \frac{5}{15} = \frac{1}{3}$