Question

Efetue as multiplicações

a) 4/7 × 1/3

b) 2/3 × 1/5

c) 3/4 × 1/5 × 2/3

d) 7/8 × 1/4 × 3/2

Answer 1

$a) \: \boxed{ \frac{4}{7} \times \frac{1}{3} }$

$\boxed{ \frac{4 \times 1}{7 \times 3} }$

$\boxed{ \frac{4}{7 \times 3} }$

$\large\boxed{\large\boxed{\large\boxed{ \frac{4}{21} }}}$

$b) \: \boxed{ \frac{2}{3} \times \frac{1}{5} }$

$\boxed{ \frac{2 \times 1}{3 \times 5} }$

$\boxed{ \frac{2}{3 \times 5} }$

$\large\boxed{\large\boxed{\large\boxed{ \frac{2}{15} }}}$

$c) \: \boxed{ \frac{3}{4} \times \frac{1}{5} \times \frac{2}{3} }$

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

$\boxed{ \frac{1}{2} \times \frac{1}{5} }$

$\large\boxed{\large\boxed{\large\boxed{ \frac{1}{10} }}}$

$d) \: \boxed{ \frac{3}{8} \times \frac{1}{4} \times \frac{3}{2} }$

$\boxed{ \frac{7 \times 1 \times 3}{8 \times 4 \times 2} }$

$\boxed{ \frac{21}{8 \times 4 \times 2} }$

$\large\boxed{\large\boxed{\large\boxed{ \frac{21}{64} }}}$

Espero ter colaborado, bons estudos❤.