\(\dfrac{5}{11}:\dfrac{10}{49}-\dfrac{5}{11}.\dfrac{3}{10}+\dfrac{10}{11}.\dfrac{27}{10}\\ =\dfrac{49}{22}-\dfrac{3}{22}+\dfrac{54}{22}\\ =\dfrac{50}{11}\)
` 5/11 : 10/49 - 5/11 . 3/10 + 10/11 . 27/10`
` = 5/11 xx 49/10 - 5/11 . 3/10 + 10/11 . 27/10`
` = 49/22 - 3/22 + 27/11`
` = 49/22 - 3/22 + 54/22`
` = 100/22`
` = 50/11`