\(\dfrac{11}{14}-\dfrac{5}{7}=\dfrac{11}{14}-\dfrac{10}{14}=\dfrac{1}{14}\)
\(\dfrac{5}{8}\times\dfrac{12}{15}=\dfrac{30}{120}=\dfrac{1}{4}\)
\(\dfrac{15}{18}-\dfrac{1}{9}:\dfrac{2}{7}=\dfrac{15}{18}-\dfrac{7}{18}=\dfrac{8}{18}\)
11/14 - 5/7 = 1/14
5/8 x 12/15 = 1/2
15/18 - 1/9 : 2/7
= 15/18 -7/18
= 4/9
11/14 - 5/7 = 1/14
5/8 x 12/15 = 2/9
15/18 - 1/9 : 2/7 = 15/18 - 7/18 = 4/9