1. 23/5 х + х + 5/2х + 7/15 х + 31/10х = 56/10 + 25/10 + 31/10 + 7/15 = 112/10 + 7/15 = 336/30 +
14/30 = 350/ 30 = 35/3 = 11 2/3х = 11 2/3 х = 35/ 3 * 9/14 = 315/42 = 7 21/42 = 7 1/2
35/3 * 1 4/5 = 35/3 * 9/5 = 315/15 = 21 35/3 * 3 = 105/3 = 35
1. 23/5 х + х + 5/2х + 7/15 х + 31/10х = 56/10 + 25/10 + 31/10 + 7/15 = 112/10 + 7/15 = 336/30 +
14/30 = 350/ 30 = 35/3 = 11 2/3х = 11 2/3 х = 35/ 3 * 9/14 = 315/42 = 7 21/42 = 7 1/2
35/3 * 1 4/5 = 35/3 * 9/5 = 315/15 = 21 35/3 * 3 = 105/3 = 35