4/7 - 12/21
15/8 - 45/24
8/9 - 16/18
20/28 - 5/7
\(\dfrac{4}{7}=\dfrac{12}{21};\dfrac{15}{8}=\dfrac{45}{24};\dfrac{8}{9}=\dfrac{16}{18};\dfrac{5}{7}=\dfrac{20}{28}\)
4/7 - 12/21
15/8 - 45/24
8/9 - 16/18
20/28 - 5/7
4/7 - 12/21
15/8 - 45/24
8/9 - 16/18
20/28 - 5/7