Question

resolva as frações e simplifique quando possível ​

Answer 1

Resposta:

a)

$\frac{27}{12} + \frac{31}{12} = \frac{29}{6}$

b)

$\frac{7}{14} - \frac{2}{77} = \frac{73}{154}$

c)

$\frac{3}{5} + \frac{2}{4} - \frac{1}{3} = \frac{23}{30}$

d)

$\frac{9}{8} \times \frac{8}{9} = 1$

e)

$- \frac{11}{4} \times \frac{13}{6} = - \frac{143}{24}$

f)

$\frac{12}{13} \div \frac{7}{8} = \frac{96}{91} \\ \\ g ) \frac{7}{5} \div 6 = \frac{7}{30} \\ \\ h) \frac{11}{} \times \frac{33}{8} = \frac{363}{8}$

$j) \frac{7}{5} - \frac{2}{3} + \frac{1}{7} = \frac{92}{105}$

$i) = \frac{2}{3} \times \frac{1}{7} \times \frac{5}{2} = \frac{5}{21}$