$3 = \frac{}{1}$
3 * 1 = 3, значит:
$3 = \frac{3}{1}$

$8 = \frac{}{1}$
8 * 1 = 8, значит:
$8 = \frac{8}{1}$

$2 = \frac{}{2}$
2 * 2 = 4, значит:
$2 = \frac{4}{2}$

$4 = \frac{}{2}$
4 * 2 = 8, значит:
$4 = \frac{8}{2}$

$16 = \frac{}{13}$
16 * 3 = 48, значит:
$16 = \frac{48}{13}$

$15 = \frac{}{4}$
15 * 4 = 60, значит:
$15 = \frac{60}{4}$

$10 = \frac{}{5}$
10 * 5 = 50, значит:
$10 = \frac{50}{5}$

$12 = \frac{}{2}$
12 * 2 = 24, значит:
$12 = \frac{24}{2}$

$7 = \frac{}{6}$
7 * 6 = 42, значит:
$7 = \frac{42}{6}$

$100 = \frac{}{5}$
100 * 5 = 500, значит:
$100 = \frac{500}{5}$

$20 = \frac{}{3}$
20 * 3 = 60, значит:
$20 = \frac{60}{3}$

$9 = \frac{}{4}$
9 * 4 = 36, значит:
$9 = \frac{36}{4}$