a)\(\dfrac{3}{4}+\dfrac{1}{6}=\dfrac{18}{24}+\dfrac{4}{24}=\dfrac{22}{24}=\dfrac{11}{12}\)
b)\(\dfrac{5}{3}-\dfrac{3}{5}=\dfrac{25}{15}-\dfrac{9}{15}=\dfrac{16}{15}\)
c)\(\dfrac{3}{4}\times\dfrac{2}{9}=\dfrac{3\times2}{4\times9}=\dfrac{6}{36}=\dfrac{1}{6}\)
d)\(\dfrac{3}{9}:\dfrac{8}{9}=\dfrac{3}{9}\times\dfrac{9}{8}=\dfrac{27}{72}=\dfrac{3}{8}\)
a/\(\dfrac{22}{24}\)
b/\(\dfrac{16}{15}\)
c/\(\dfrac{1}{6}\)
d/\(\dfrac{3}{8}\)
\(\dfrac{3}{4}+\dfrac{1}{6}=\dfrac{11}{12}\)
\(\dfrac{5}{4}-\dfrac{3}{5}=\dfrac{13}{20}\)
\(\dfrac{3}{4}\times\dfrac{2}{9}=\dfrac{3\times2}{4\times9}=\dfrac{1}{6}\)
\(\dfrac{3}{9}\div\dfrac{8}{9}=\dfrac{3\times9}{9\times8}=\dfrac{3}{8}\)
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