Question

36/21-15/20

Answer 1

\(\dfrac{36}{21}-\dfrac{15}{20}=\dfrac{720}{420}-\dfrac{315}{420}=\dfrac{405}{420}=\dfrac{27}{28}\)

Answer 2

\(\dfrac{36}{21}-\dfrac{15}{20}=\dfrac{12}{7}-\dfrac{3}{4}=\dfrac{27}{28}\)