Question

soma as fraçoes com denominadores diferentes : 

1/6 + 2/5 

1/3 + 5/7

Answer 1

$\frac{1}{6} + \frac{2}{5} = \frac{1 + 2}{30} = \frac{5 + 12}{30} = \boxed{ \frac{17}{30}} \\ \\ \frac{1}{3}+ \frac{5}{7} = \frac{1 + 5}{21} = \frac{7 + 15}{21} = \boxed{ \frac{22}{21}}$

Answer 2

$\frac{1}{6} + \frac{2}{5} = \frac{5.1+6.2}{30}= \frac{6+12}{30}= \frac{17}{30}$

$\frac{1}{3} + \frac{5}{7} = \frac{3.5+7.1}{21} = \frac{15+7}{21} = \frac{22}{21}$