1)х+ 5 3/8= 16 1/2
х= 33/2 -43/8
х= 132/8 - 43/8
х= 89/8
х= 10 1/8
2) х+ 9 6/7 -1 3/14= 12 25/28
х + 69/7 - 17/14= 361/28
х= 361/28 - 276/28 + 34/28
х=119/28
х= 4 1/4
3) х/4 +3/8 = 7 5/16 - 5 - 7/24
х/4+3/8=97/48
х/4 = 97/48 - 1848
х/4 = 79/48
х= 79/48 * 4
х= 79/12
х= 6 7/12
4) 2х - 4/5= 2 3/25 - 1 7/15
2х- 4/5= 53/25 - 22/15
2х- 4/5= 159/75 - 110/75
2х- 4/5= 49/75
2х= 49/75 +60/75
2х= 109/75
х= 109/75 *1/2
х= 109/150