12целых7/12-4целых1/8-4целых1/3

12 ( 7/12 ) - 4 ( 1/8 ) - 4 ( 1/3 ) = 12 ( 28/48 ) - 4 ( 6/48 ) - 4 ( 16/48 ) = 12 ( 28/48 ) - 8 ( 22/48 ) = 4 ( 6/48 ) = 4 ( 1/8 )