Question

plz answer it today is my test​

Answer 1

Answer:

(a). 9/12 is the answer....

hope it helps......

please mark my answer as brainliest.......

Answer 2

Explanation:

Let the numerator be x and denominator be y

$\frac{x}{y} = \frac{3}{4}$

$4x = 3y$

$4x - 3y = 0 \: \: \: \: \: \: \: \: (1)$

$\frac{x}{y + 3} = \frac{3}{5}$

$5x = 3(y + 3)$

$5x = 3y + 9$

$5x - 3y = 9 \: \: \: \: \: \: \: (2)$

$subracting \: \: (1) \: \: from \: \: (2)$

$5x - 3y = 9 \\ 4x - 3y = 0 \\ - \: \: \: \: \: \: \: + \: \: \: \: \: \: \: - \\ x = 9$

$4(9) - 3y = 0$

$36 - 3y = 0$

$- 3y = - 36$

$y = 12$

So the rational number is 9/12