Question

9/4 - 1

nhớ giải đầy đủ nhe :)

Answer 1

9/4-4/4

=5/4

Answer 2

\(\dfrac{9}{4}-1=\dfrac{9-4}{4}=\dfrac{5}{4}\)

Answer 3

\(\dfrac{9}{4}-1=\dfrac{9}{4}-\dfrac{4}{4}=\dfrac{9-4}{4}\)\(=\dfrac{5}{4}\)