\(\frac{9}{4}+\frac{17}{6}=\frac{27}{12}+\frac{34}{12}=\frac{61}{12}\)
Ta có :\(\frac{9}{4}+\frac{17}{6}=\frac{9x3}{4x3}+\frac{17x2}{6x2}=\frac{27}{12}+\frac{34}{12}=\frac{61}{12}\)
Vậy 9/4 + 17/6 =61/12
\(\frac{9}{4}+\frac{17}{6}=\frac{27}{12}+\frac{4}{12}=\frac{31}{12}\)