Помогите решить уравнение (7\12+11\30х):7\1\4=1\3

( ( 7/12 ) + ( 11/30 )X ) : 7 ( 1/4 ) = 1/3 ( 7/12 ) + ( 11/30 ) X = ( 1/3 ) * ( 29/4 ) ( 7/12 ) + ( 11/30 ) X = 29/12 ( 11/30 ) X = ( 29/12 ) - ( 7/12 ) ( 11/30 ) X = ( 22/12 ) X = ( 11/6 ) : ( 11/30 ) X = 30/6 X = 5