Duduli

Step-I  First of all determine the intercepts of plane on the three co-ordinate axes. Step-II  Secondly, take the reciprocal of these intercepts. Step-III Lastly, reduce the reciprocals into whole numbers. This can be done by multiplying each reciprocal by a number obtained after taking L.C.M. of denominators. ★(h,k,L) is called Miller indices

The Miller indices of a plane are defined as the reciprocals of the intercepts which the plane makes with the axes when reduced to smallest numbers.