Question

RESOLVA AS DIVISÕES:
a)
$\frac{10}{3} \div \frac{5}{4} =$

b)
$\frac{8}{5} \div \frac{9}{2} =$

c)
$\frac{7}{12} \div \frac{3}{6} =$

d)
$\frac{18}{4} \div \frac{5}{2} =$
RESPOSTAS COMPLETAS OU REPORT!​

Answer 1

Explicação passo-a-passo:

a)

$\color{violet}{\Large\bf{ \frac{10}{3} \div \frac{5}{4} }}$

$\color{violet}{\Large\bf{ \frac{10}{3} \times \frac{4}{5} }}$

$\color{violet}{\Large\bf{ \frac{ \cancel{10}}{3} \times \frac{4}{\cancel{5}} }}$

$\color{violet}{\Large\bf{ \frac{2}{3} \times 4 }}$

$\color{violet}{\Large\bf{ \frac{2}{3} \times \frac{4}{1} }}$

$\color{violet}{\Large\bf{ \frac{2 \times 4}{3 \times 1} }}$

$\color{violet}{\Large\bf{\boxed{ \frac{8}{3} }}} \\ \color{violet}{\Large\bf{ou }} \\ \color{violet}{\Large\bf{\boxed{2,666...}}}$

b)

$\color{violet}{\Large\bf{ \frac{8}{5} \div \frac{9}{2} }}$

$\color{violet}{\Large\bf{ \frac{8}{5} \times \frac{2}{9} }}$

$\color{violet}{\Large\bf{ \frac{8 \times 2}{5 \times 9} }}$

$\color{violet}{\Large\bf{\boxed{ \frac{16}{45} }}} \\ \color{violet}{\Large\bf{ou}} \\ \color{violet}{\Large\bf{\boxed{ 0,3555...}}}$

c)

$\color{violet}{\Large\bf{ \frac{7}{12} \div \frac{3}{6} }}$

$\color{violet}{\Large\bf{ \frac{7}{12} \times \frac{6}{ 3} }}$

$\color{violet}{\Large\bf{ \frac{7}{12} \times \frac{\cancel{6}}{\cancel{3}} }}$

$\color{violet}{\Large\bf{ \frac{7}{12} \times 2}}$

$\color{violet}{\Large\bf{ \frac{7}{\cancel{12}} \times \cancel{2}}}$

$\color{violet}{\Large\bf{\boxed{ \frac{7}{6} }}} \\ \color{violet}{\Large\bf{ou}} \\ \color{violet}{\Large\bf{ \color{violet}{\Large\bf{\boxed{1,16...}}}}}$

d)

$\color{violet}{\Large\bf{ \frac{18}{4} \div \frac{5}{2} }}$

$\color{violet}{\Large\bf{ \frac{18}{4} \times \frac{2}{5} }}$

$\color{violet}{\Large\bf{ \frac{18}{\cancel{4}} \times \frac{\cancel{2}}{5} }}$

$\color{violet}{\Large\bf{ \frac{18}{2} \times \frac{1}{5} }}$

$\color{violet}{\Large\bf{ \frac{\cancel{18}}{\cancel{2}} \times \frac{1}{5} }}$

$\color{violet}{\Large\bf{9 \times \frac{1}{5} }}$

$\color{violet}{\Large\bf{ \frac{9}{1} \times \frac{1}{5} }}$

$\color{violet}{\Large\bf{ \frac{9 \times 1}{1 \times 5} }}$

$\color{violet}{\Large\bf{\boxed{ \frac{9}{5} }}} \\ \color{violet}{\Large\bf{ou}} \\ \color{violet}{\Large\bf{\boxed{1,8}}}$

${ \boxed{{\mathbb{ATT: ARMANDO}}}}$

Answer 2

Oie, Td Bom?!

a)

= 10/3 ÷ 5/4

= 10/3 . 4/5 ⇐ Simplifica por 5.

= 2/3 . 4

= 2/3 . 4/1

= [2 . 4]/[3 . 1]

= 8/3

b)

= 8/5 ÷ 9/2

= 8/5 . 2/9

= [8 . 2]/[5 . 9]

= 16/42

c)

= 7/12 ÷ 3/6

= 7/12 . 6/3 ⇐ Simplifica por 3.

= 7/12 . 2 ⇐ Simplifica por 2.

= 7/6

d)

= 18/4 ÷ 5/2

= 18/4 . 2/5 ⇐ Simplifica por 2.

= 18/2 . 1/5 ⇐ Simplifica por 2.

= 9 . 1/5

= 9/1 . 1/5

= [9 . 1]/[1 . 5]

= 9/5

Att. Makaveli1996