Question

3\(\dfrac{1}{3}\)+\(\dfrac{5}{6}\)       4\(\dfrac{5}{7}\)-2\(\dfrac{11}{21}\)       3\(\dfrac{1}{4}\)x\(\dfrac{2}{5}\)     4\(\dfrac{7}{8}\):\(\dfrac{1}{4}\)

Answer 1

\(3\dfrac{1}{3}+\dfrac{5}{6}=\dfrac{10}{3}+\dfrac{5}{6}=\dfrac{20}{6}+\dfrac{5}{6}=\dfrac{25}{6}\)
\(4\dfrac{5}{7}-2\dfrac{11}{21}=\dfrac{33}{7}-\dfrac{53}{21}=\dfrac{99}{21}-\dfrac{53}{21}=\dfrac{46}{21}\)
\(3\dfrac{1}{4}x\dfrac{2}{5}=\dfrac{13}{3}x\dfrac{2}{5}=\dfrac{26}{15}\)
\(4\dfrac{7}{8}:\dfrac{1}{4}=\dfrac{39}{8}.4=\dfrac{39}{2}\)