Question

Calcule :

a)2/7/3/5; b)10/2/5 c)3 1/7I 1 1/2 d)1/1/6

Answer 1

Explicação passo-a-passo:

a)

$\sf \dfrac{\frac{2}{7}}{\frac{3}{5}}$

$\sf =\dfrac{2}{7}\cdot\dfrac{5}{3}$

$\sf =\red{\dfrac{10}{21}}$

b)

$\sf \dfrac{10}{\frac{2}{5}}$

$\sf =\dfrac{10}{1}\cdot\dfrac{5}{2}$

$\sf =\dfrac{50}{2}$

$\sf =\red{25}$

c)

$\sf \dfrac{3~\frac{1}{7}}{1~\frac{1}{2}}$

$\sf =\dfrac{\frac{21+1}{7}}{\frac{2+1}{2}}$

$\sf =\dfrac{\frac{22}{7}}{\frac{3}{2}}$

$\sf =\dfrac{22}{7}\cdot\dfrac{2}{3}$

$\sf =\red{\dfrac{44}{21}}$

d)

$\sf \dfrac{1}{\frac{1}{6}}$

$\sf =\dfrac{1}{1}\cdot\dfrac{6}{1}$

$\sf =\red{6}$

Answer 2

Oie, Td Bom?!

a)

= [2/7]/[3/5]

= 2/7 ÷ 3/5

= 2/7 . 5/3

= [2 . 5]/[7 . 3]

= 10/21

b)

= 10/[2/5]

= 10 ÷ 2/5

= 10 . 5/2

= [10 . 5]/2

= 50/2

= 25

c)

= [3 1/7]/[1 1/2]

= [22/7]/[3/2]

= 22/7 ÷ 3/2

= 22/7 . 2/3

= [22 . 2]/[7 . 3]

= 44/21

d)

= 1/[1/6]

= 1 ÷ 1/6

= 1 . 6

= 6

Att. Makaveli1996