Question

Phân số 11/15 thui ah

Answer 1

Sửa đề: \(H=\dfrac{4}{28}-\left(-\dfrac{23}{28}+\dfrac{11}{15}-\dfrac{29}{27}\right)-\dfrac{2}{27}\)

\(=\dfrac{4}{28}+\dfrac{23}{28}-\dfrac{11}{15}+\dfrac{29}{27}-\dfrac{2}{27}\)

\(=\dfrac{27}{28}-\dfrac{11}{15}+1\)

\(=\dfrac{27}{28}+\dfrac{4}{15}=\dfrac{517}{420}\)