5/8+5/24=15/24+5/24=20/24=5/6
1/2-1/8=4/8-1/8=3/8
2/3-4/9=6/9-4/9=2/9
3/4-1/12=9/12-1/12=8/12=2/3
4562 - х = 36 * 2
4562 - х = 72
х = 4562 - 72
х =4490
=================
4562 - 4490 = 36 * 2
72= 72
х - 3210 = 45 * 2
х - 3210 = 90
х = 90 + 3210
х = 3300
=================
3300 - 3210 = 45 * 2
90 = 90