Question

2 phần 3 + 5 phần 7 -3 phần 4

Answer 1

\(\dfrac{2}{3}\) + \(\dfrac{5}{7}\) - \(\dfrac{3}{4}\) đề là vậy p ko

= \(\dfrac{56}{84}\) + \(\dfrac{60}{84}\) - \(\dfrac{63}{84}\) = \(\dfrac{103}{84}\)

Answer 2

\(\dfrac{2}{3}+\dfrac{5}{7}-\dfrac{3}{4}\)

=\(\dfrac{56}{84}+\dfrac{60}{84}-\dfrac{63}{84}=\dfrac{103}{84}\)