HCF of `(4)/(5),(5)/(6),(9)/(10)` is

Find HCF of (6)/(4),(4)/(15),(2)/(5)

The sum of HCF and LCM of (2)/(3),(4)/(9) and (5)/(6) is

Find the HCF and LCM of (4)/(5),(2)/(5)and (3)/(4)

Find the HCF and LCM of 4/(5),6/(11),3/(5) .

Express the following as improper fractions: (a) (7)(3)/(4) (b) (5)(6)/(7) (c) (2)(5)/(6) (d) (10)(3)/(5) (e) (9) (3)/(7) (f) (8)(9)/(4)

If A=[{:(2,3,10),(4,-6,5),(6,9,-20):}] , find A^(-1) . Using A^(-1) , solve the system of equations : {:((2)/(x)+(3)/(y)+(10)/(z)=2),((4)/(x)-(6)/(y)+(5)/(z)=5),((6)/(x)+(9)/(y)-(20)/(z)=-4):}