\(\dfrac{2}{3}\) = \(\dfrac{2x5}{3x5}\) = \(\dfrac{10}{15}\) ; \(\dfrac{4}{5}\) = \(\dfrac{4x3}{5x3}\) = \(\dfrac{12}{15}\)
\(\dfrac{3}{4}\) = \(\dfrac{3x4}{4x4}\) = \(\dfrac{12}{16}\) ; \(\dfrac{5}{8}\) = \(\dfrac{5x2}{8x2}\) = \(\dfrac{10}{16}\) ; \(\dfrac{7}{16}\) giữ nguyên