Question

eu estou com dúvida me ajudem ​

Answer 1

a)

$\frac{1}{4} \times (3) = \frac{3}{12} \\ \frac{1}{3} \times (4) = \frac{4}{12} \\ \frac{3}{12} + \frac{4}{12} = \frac{7}{12}$

b)

$\frac{4}{3} \times (2) = \frac{8}{6} \\ \frac{1}{2} \times (3) = \frac{3}{6} \\ \frac{8}{6} + \frac{3}{6} = \frac{11}{6}$

c)

$\frac{1}{1} \times (6) = \frac{6}{6} \\ \frac{1}{2} \times (3) = \frac{3}{6 } \\ \frac{6}{6} + \frac{3}{6} + \frac{1}{6} = \frac{10}{6}$

d)

$\frac{4}{3} \times (2) = \frac{8}{6} \\ \frac{1}{2} \times (3) = \frac{3}{6} \\ \frac{8}{6} - \frac{3}{6} = \frac{5}{6}$