Question

28/....=21/24

121/143=..../13

Answer 1

\(=\dfrac{28\times24}{21}=32\\ =>\dfrac{28}{32}=\dfrac{21}{24}\\ b,=\dfrac{121\times13}{143}=11\\ =>\dfrac{121}{143}=\dfrac{11}{13}\)

Answer 2

\(\dfrac{21}{24}=\dfrac{7}{8}=\dfrac{28}{32}\)

\(\dfrac{121}{143}=\dfrac{11}{13}\)

Answer 3

\(\dfrac{28}{32}=\dfrac{21}{24}\); \(\dfrac{121}{143}=\dfrac{11}{13}\)