Question

 Thực hiện phép tính: \(\frac{\frac{2}{3}+\frac{2}{7}-\frac{1}{14}}{-1-\frac{3}{7}+\frac{3}{28}}\)

Answer 1

bằng \(-\frac{2}{3}\)

nhé

Answer 2

bằng phân số \(\frac{-2}{3}\)nhé nhớ tích nhé

Answer 3

\(\frac{-2}{3}\)

Answer 4

\(\frac{2.\left(\frac{1}{3}+\frac{1}{7}-\frac{1}{28}\right)}{-3.\left(\frac{1}{3}+\frac{1}{7}-\frac{1}{28}\right)}=-\frac{2}{3}\)

Cách này k cần dùng mt nhé

Hok tốt

Answer 5

\(\frac{\frac{2}{3}+\frac{2}{7}-\frac{1}{14}}{-1-\frac{3}{7}+\frac{3}{28}}=\frac{\frac{2}{3}+\frac{2}{7}-\frac{2}{28}}{\frac{-3}{3}-\frac{3}{7}+\frac{3}{28}}\)

\(=\frac{2\left(\frac{1}{3}+\frac{1}{7}-\frac{1}{28}\right)}{-3\left(\frac{1}{3}+\frac{1}{7}-\frac{1}{28}\right)}\)

\(=\frac{-2}{3}\)

Study well ! >_<

Answer 6

Trả lời :

\(\frac{-2}{3}\)

Study well :>