`a, 11/3 + 1 1/2`
`= (22+9)/6`
`= 31/6`
`b, 31/2 xx 11/7`
`= 341/14`
`c, 32/5 - 11/10`
`= (64-11)/10 = 53/10`
`d, 41/6 : 21/3`
`= 41/6 xx 1/7`
`= 41/42`
\(a,1\dfrac{1}{3}+2\dfrac{1}{2}=\dfrac{4}{3}+\dfrac{5}{2}=\dfrac{23}{6}\)
\(b,3\dfrac{2}{5}-1\dfrac{1}{10}=\dfrac{17}{5}-\dfrac{11}{10}=\dfrac{23}{10}\)
\(c,3\dfrac{1}{2}\times1\dfrac{1}{7}=\dfrac{7}{2}\times\dfrac{8}{7}=4\)
\(d,4\dfrac{1}{6}:2\dfrac{1}{3}=\dfrac{25}{6}:\dfrac{7}{3}=\dfrac{25}{14}\)