1) 2 * 108 = 27X ---> 27X = 216 ---> X = 8
2) X : 2\3 = 27\8 : 3 = 27 \ 24 ---> X = 27\24 * 2\3 = 54\72 = 0.75
3) 7\3K = 9\2 * 10\9 = 90\18 ---> K = 90\18 : 7\3 = ( 90 * 3 ) \ (18 * 7) = 270\126 =
= 135\63 = 2 9\63
4) Y :4\5 = 28\9 : 4\9 = 28\4 ---> Y = 28\4 * 4\5 = 28\5 = 5.6