Решить уравнение (3 1/8+1 3/4) х=2 1/6, (2 1/12-1 5/6)х =3/4

1) ( 3 целых 1 / 8 + 1 целая 3 / 4 ) * х = 2 целых 1 / 6
( ( 3 * 8 + 1 ) / 8 + ( 1 * 4 + 3 ) / 4 ) * х = ( 2 * 6 + 1 ) / 6
( ( 24 + 1 ) / 8 + ( 4 + 3 ) / 4 ) * х = ( 12 + 1 ) / 6
( 25 / 8 + 7 / 4 ) * х = 13 / 6
( 25 * 1 + 7 * 2 ) / 8 * х = 13 / 6
( 25 + 14 ) / 8 * х = 13 / 6
39 * х / 8 = 16 / 6
39 * х * 6 = 16 * 8
х = 16 * 8 / ( 39 * 6 )
х = 16 * 4 / ( 39 * 3 )
х = 64 / 117

2 ) ( 2 целых 1 / 12 - 1 целая 5 / 6 ) * х = 3 / 4
( 25 / 12 - 11 / 6 ) * х = 3 / 4
( 25 - 11 * 2 ) / 12 * х = 3 / 4
3 / 12 * х = 3 / 4
1 / 12 * х = 1 / 4
12 х = 4
х = 1 / 3