Question

Answer 1

trình bày từng bước

Answer 2

2 - \(\dfrac{3}{4}\) x \(\dfrac{8}{5}\) + \(\dfrac{1}{2}\)

= 2 - \(\dfrac{6}{5}\) + \(\dfrac{1}{2}\)

= \(\dfrac{7}{6}\) + \(\dfrac{1}{2}\)

= \(\dfrac{5}{3}\)

Answer 3

\(2-\dfrac{3}{4}x\dfrac{8}{5}+\dfrac{1}{2}=2-\dfrac{6}{5}+\dfrac{1}{2}=\dfrac{10-6}{5}+\dfrac{1}{2}=\dfrac{4}{5}+\dfrac{1}{2}=\dfrac{8+5}{10}=\dfrac{13}{10}\)

Answer 4

Answer 5

2 - 3/4 x 8/5 + 1/2
= 2 - 6/5 + 1/2
= 10/5 - 6/5 + 1/2
= 4/5 + 1/2
= 8/10 + 5/10
= 13/10

Answer 6

= \(\dfrac{13}{10}\)