Question

Determine o número racional x/y sendo :
x= 0,3 + 1/4 e y= 2-1/2:2+1/2

Answer 1

$x = 0,3 + \frac{1}{4} \\ x = \frac{3}{10} + \frac{1}{4} = \frac{12 + 10}{40} = \frac{22}{40} \\ x = \frac{11}{20}$

$y = 2 - \frac{1}{2 \div 2} + \frac{1}{2} \\ y = 2 - 1 + \frac{1}{2} = 1 + \frac{1}{2} \\ y = \frac{2 + 1}{2} = \frac{3}{2}$

$\frac{x}{y} = \frac{ \frac{11}{20} }{ \frac{3}{2} } = \frac{11}{20}. \frac{2}{3} = \frac{11}{ 30}$