Question

a)4/5×5/8=?
b)3/2×9/8=?
c)1/2×5/4=?
d)9/5×4/3=?

me ajudem por favor!​

Answer 1

Resposta:

a)4/5×5/8=

$\frac{4 \times 5}{5 \times 8} \\ \\ \frac{20}{40} \div (20) \\ \\ = \frac{1}{2}$

b)3/2×9/8=

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

c)1/2×5/4=

$\frac{1 \times 5}{2 \times 4} \\ \\ \frac{5}{8}$

d)9/5×4/3=

$\frac{9 \times 4}{5 \times 3} \\ \\ \frac{36}{15} \div (3) \\ \\ \frac{12}{5}$