`3/17 + 6/11 + 14/17`
`= (3/17 +14/17)+6/11`
`= 1 + 6/11`
`= 11/11 +6/11`
`=17/11`
\(\dfrac{3}{17}+\dfrac{6}{11}+\dfrac{14}{17}\\ =\left(\dfrac{3}{17}+\dfrac{14}{17}\right)+\dfrac{6}{11}\\ =\dfrac{17}{17}+\dfrac{6}{11}\\ =1+\dfrac{6}{11}\\ =\dfrac{17}{11}.\)