Question

36/21-15/20

tính

Answer 1

`36/21 - 15/20= 12/7-3/4=27/28`

Answer 2

câu trả lời là 27/28

Answer 3

\(\dfrac{36}{21}-\dfrac{15}{20}=\dfrac{12}{7}-\dfrac{3}{4}=\dfrac{48}{28}-\dfrac{21}{28}=\dfrac{27}{28}\)

Answer 4

\(\dfrac{36}{21}-\dfrac{15}{20}\)
\(=\dfrac{12}{7}-\dfrac{3}{4}\)
\(=\dfrac{48}{28}-\dfrac{21}{28}\)
\(=\dfrac{27}{28}\)