Question

4) Efetue os calculos:

a) 1/6 + 1/3
b) 3/5 x 3/7
c) 1/2 ÷ 1/8
d) 5/8 + 3/4
e) 2/4 x 5/8
f) 3/5 - 1/6
g) 3/4 ÷ 1/6

Answer 1

a)$\frac{1}{6} + \frac{1}{3}= \frac{1+2}{6} = \frac{3}{2}$
b)$\frac{3}{5}. \frac{3}{7} = \frac{9}{35}$
c)$\frac{1}{2} / \frac{1}{8}= \frac{1}{2}. \frac{8}{1}= \frac{8}{2}=4$
d)$\frac{5}{8} + \frac{3}{4} = \frac{11}{8}$
e)$\frac{2}{4}. \frac{5}{8} = \frac{10}{32}= \frac{5}{16}$
f)$\frac{3}{5} - \frac{1}{6} = \frac{18-5}{30} = \frac{13}{30}$
g)$\frac{3}{4} / \frac{1}{6} = \frac{3}{4} . \frac{6}{1} = \frac{18}{4} = \frac{9}{2}$