Question

Efetue a divisão abaixo (1/4+1/5)÷(3/2+3)=

Answer 1

Resposta:

Explicação passo a passo:

a) (1/4+1/2) : (3/2 + 3)=

1/4+1/2= 1/4+2/4= 3/4

3/2 +3= 3/2 +6/2= 9/2

3/4 : 9/2= 3/4 . 2/9= 6/36= 3/18= 1/6

b) (1/2 - 1/6) : (1/3 - 1/4)=

1/2-1/6= 3/6-1/6= 2/6= 1/3

1/3 -1/4= 4/12 -3/12= 1/12

1/3 : 1/12= 1/3 .12/1= 12/3= 4

Answer 2

Resposta:

$\frac{1}{10}$

Explicação passo-a-passo:

$( \frac{1}{4} + \frac{1}{5} ) \div ( \frac{3}{2} + 3) = ( \frac{5 +1 4}{20} ) \div \frac{3 + 6}{2} = \frac{9}{20} \div \frac{9}{2} = \frac{9}{20} \times \frac{2}{9} = \frac{18}{180} = \frac{1}{10}$