Bingo: Pick 6 numbers...

1) $\frac{8}{20}$ = $\frac{2}{5}$
2) $\frac{70}{90}$ = $\frac{7}{9}$
3) $\frac{18}{21}$ = $\frac{6}{7}$
4) $\frac{9}{21}$ = $\frac{3}{7}$
5) $\frac{10}{15}$ = $\frac{2}{3}$
6) $\frac{4}{20}$ = $\frac{1}{5}$
7) $\frac{12}{21}$ = $\frac{4}{7}$
8) $\frac{12}{40}$ = $\frac{3}{10}$
9) $\frac{6}{36}$ = $\frac{1}{6}$
10) $\frac{20}{90}$ = $\frac{2}{9}$

11) $\frac{28}{40}$ = $\frac{7}{10}$
12) $\frac{3}{21}$ = $\frac{1}{7}$
13) $\frac{80}{90}$ = $\frac{8}{9}$
14) $\frac{35}{56}$ = $\frac{5}{8}$
15) $\frac{16}{20}$ = $\frac{4}{5}$
16) $\frac{49}{56}$ = $\frac{7}{8}$
17) $\frac{8}{32}$ = $\frac{1}{4}$
18) $\frac{7}{56}$ = $\frac{1}{8}$
19) $\frac{10}{90}$ = $\frac{1}{9}$
20) $\frac{12}{20}$ = $\frac{3}{5}$