Question

Answer 1

B

B

D

18/21=12/14=6/7=36/42; 12/14=90/150=60/100=3/5=21/35

Answer 2

C1

B

B

D

C2

\(\dfrac{18}{21}=\dfrac{12}{14}=\dfrac{6}{7}=\dfrac{36}{42}\)

\(\dfrac{90}{150}=\dfrac{12}{20}=\dfrac{60}{100}=\dfrac{3}{5}=\dfrac{21}{35}\)