a) 5/9+ 6/9= 11/9
b) 5/8
c) 6/5 x 3/2 = 9/5
d) 49/14- 29/14= 20/14 = 10/7
a, 5/9 + 2/3 = 11/9
b, 7/8 x 5/7 = 5/8
c, 6/5 : 2/3 = 9/5
d, 7/2 - 29/14 =10/7
a) \(\dfrac{5}{9}+\dfrac{2}{3}=\dfrac{10}{18}+\dfrac{12}{18}=\dfrac{22}{18}=\dfrac{11}{9}\)
b) \(\dfrac{7}{8}\times\dfrac{5}{7}=\dfrac{35}{56}=\dfrac{5}{8}\)
c) \(\dfrac{6}{5}\div\dfrac{2}{3}=\dfrac{6}{5}\times\dfrac{3}{2}=\dfrac{18}{10}=\dfrac{9}{5}\)
d) \(\dfrac{7}{2}-\dfrac{19}{14}=\dfrac{49}{14}-\dfrac{29}{14}=\dfrac{20}{14}=\dfrac{10}{7}\)
