Question

The numerator of a rational number is less than its denominator by 3. If the numerator becomes three times and the denominator is increased by 20, the new number becomes 1/8. Find the original number.

Answer 1

Step-by-step explanation:

$y = denominator \\ y - 3 = numerator \frac{3(y - 3)}{y + 20 } = \frac{1}{8} \\ \\24y - 72 = y + 20 \\ 23y = 92 = 4$