\(\dfrac{4}{9}\):\(\dfrac{11}{15}\)+\(\dfrac{4}{9}\).\(\dfrac{18}{11}\)-\(\dfrac{1}{3}\)
=\(\dfrac{4}{9}\).\(\dfrac{15}{11}\)+\(\dfrac{4}{9}\).\(\dfrac{18}{11}\)-\(\dfrac{1}{3}\)
=\(\dfrac{4}{9}.\left(\dfrac{15}{11}+\dfrac{18}{11}\right)\)-\(\dfrac{1}{3}\)
=\(\dfrac{4}{9}\).3-\(\dfrac{1}{3}\)
=\(\dfrac{4}{3}-\dfrac{1}{3}\)
=1