1 7/12 - (44/45 - (х + 5/18)) = 1 13/60,
44/45 - (х + 5/18) = 1 7/12 - 1 13/60,
44/45 - (х + 5/18) = 1 35/60 - 1 13/60,
44/45 - (х + 5/18) = 11/30,
х + 5/18 = 44/45 - 11/30,
х + 5/18 = 88/90 - 33/90,
х + 5/18 = 55/90,
х + 5/18 = 11/18,
х = 11/18 - 5/18,
х = 6/18,
х = 1/3
18,8*2=27,6см
36,8-27,6=9,2см
9,2/2=4,6см
4,6*13,8=63,48см
1) 40 * 1/2 = 20
2) 40 * 1/4 = 10
3) 40 * 1/5 = 8
4) 40 * 1/8 = 5
36,72 кратные 36, т.е. делятся на 36