Question

Thực hiện phép tính

\(\dfrac{-18}{24}\) - \(\dfrac{15}{21}\)

Answer 1

=-3/4-5/7=-21/28-20/28=-41/28

Answer 2

\(\dfrac{-18}{24}-\dfrac{15}{21}=\dfrac{-3}{4}-\dfrac{5}{7}=\dfrac{-21}{28}-\dfrac{20}{28}=\dfrac{-41}{28}\)

Answer 3

3/4-5/7=-21/28-20/28=-41/28

k mik nha bn

Answer 4

- 41/28