Question

14 phần 5 x 3 phần 4 trừ 4 phần 5 x 3 phần 4

Answer 1

`14/5 xx 3/4 - 4/5 xx 3/4`

`= 3/4 xx (14/5 -4/5)`

`= 3/4 xx 10/5`

`= 3/4 xx 2`

`= 6/4`

`= 3/2`

Answer 2

\(\dfrac{14}{5}\times\dfrac{3}{4}-\dfrac{4}{5}\times\dfrac{3}{4}\)

\(=\dfrac{3}{4}\times\left(\dfrac{14}{5}-\dfrac{4}{5}\right)\)

\(=\dfrac{3}{4}\times2\)

\(=\dfrac{3\times2}{4}\)

\(=\dfrac{6}{4}=\dfrac{3}{2}\)

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