การบวกการลบเศษส่วน

\(\frac{1}{3}+\frac{1}{3}=?\)

\(\frac{2}{5}+\frac{3}{5}=?\)

\(\frac{14}{27}-\frac{4}{27}=?\)

\(\frac{12}{14}+\frac{2}{7}=?\)

\(\frac{11}{25}-\frac{2}{5}+\frac{2}{50}=?\)

\(\frac{3}{16}-\frac{1}{8}+\frac{5}{32}=?\)

\(\frac{9}{24}+4=?\)

\(\frac{1}{2}+3-\frac{1}{2}+\frac{1}{3}\)

\(\frac{4}{9}-\frac{3}{7}+\frac{13}{21}=?\)

\(3+\frac{2}{13}-1=?\)