Question

3)Qual o resultado da divisão das frações:
a) 7/2 ÷ (-3/2) =
b) 2/3 ÷ 2/3 =
c) (-5/3) ÷ (-12/2)

Answer 1

Oie, Td Bom?!.

a)

$\frac{7}{2} \div ( - \frac{3}{2} ) = - \frac{7}{2} \: . \: \frac{2}{3} = - 7 \: . \: \frac{1}{3} = - \frac{7}{3}$

b)

$\frac{2}{3} \div \frac{2}{3} = 1$

c)

$( - \frac{5}{3}) \div ( - \frac{12}{2} ) = \frac{5}{3} \: . \: \frac{2}{12} = \frac{5}{3} \: . \: \frac{1}{6} = \frac{ 5}{18}$

Att. Makaveli1996

Answer 2

$a) \frac{7}{2} \div ( - \frac{3}{2} ) = - \frac{7}{2} \times \frac{2}{3} = - 7 \times \frac{1}{3} = - \frac{7}{3}$

$b) \frac{2}{3} \div \frac{2}{ 3} = 1$

$c)( - \frac{5}{3} ) \div ( - \frac{12}{2} ) = \frac{5}{3} \times \frac{2}{12} = \frac{5}{3} \times \frac{1}{6} = \frac{5}{18}$