Question

3) Efetue as multiplicações:

a)3/4×1/2 =
b)1/8×3/4 =
c)2/7×7/5 =
d)1/5×8/3 =
e)4/3×1/5 =
f)3/5×2/4 =
g)2/3×1/8 =
h)7/5×10/14 =
i)8/5×5/8 =
j)7/3×2/7 =
k)9/8×3/2 =
L)4/10×5/2 =

PFVR ME AJUDA!!!
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Answer 1

$a) \frac{3}{4} \times \frac{1}{2} = \frac{3}{8}$

$b) \frac{1}{8} \times \frac{3}{4} = \frac{3}{32}$

$c) \frac{2}{7} \times \frac{7}{5} = \frac{14}{35}$

$d) \frac{1}{5} \times \frac{8}{3} = \frac{8}{15}$

$e) \frac{4}{3} \times \frac{1}{5} = \frac{4}{15}$

$f) \frac{3}{5} \times \frac{2}{4} = \frac{6}{20} = \frac{3}{10}$

$g) \frac{2}{3} \times \frac{1}{8} = \frac{2}{24} = \frac{1}{12}$

$h) \frac{7}{5} \times \frac{10}{14} = \frac{70}{70} = 1$

$i) \frac{8}{5} \times \frac{5}{8} = \frac{40}{40} = 1$

$j) \frac{7}{3} \times \frac{2}{7} = \frac{14}{21}$

$k) \frac{9}{8} \times \frac{3}{2} = \frac{27}{16}$

$l) \frac{4}{10} \times \frac{5}{2} = \frac{20}{20} = 1$