Question

3. Express the following rational numbers as directed.
(a) 20 by 25
with 12 as numerator​

Answer 1

Step-by-step explanation:

$\frac{20}{25} = \frac{12}{x}$

$25 \times 12 = 20x$

by cross multiplication

$\frac{25 \times 12}{20} = x$

$\frac{5 \times 3}{1} (after \: cancelling)$

15 = x

rational number = 12/15