1. Вычислите: а) 1 + 3/8 б) 1/4 + 1/8 в)1/10 + 1/15 г) 1/2 + 2 /3 д) 1 - 3/5 е) 1/3 - 1/9 ж) 1/6 - 1/14 з) 1 1/3 - 5/6

а) 1 + 3/8 = 1 3/8б) 1/4 + 1/8 = 2/8 + 1/8 = 3/8в)1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6г) 1/2 + 2 /3 = 3/6 + 2/6 = 5/6д) 1 - 3/5 = 5/5 - 3/5 = 2/5е) 1/3 - 1/9 = 3/9 - 1/9 = 2/9ж) 1/6 - 1/14 = 7/42 - 3/42 = 4/42 = 1/21з) 1 1/3 - 5/6 = 4/3 - 5/6 = 8/6 - 5/6 = 3/6 = 1/2и) 2/3 + 5/6 = 4/6 + 5/6 = 9/6 = 3/2 = 1 1/2к) 5/6 + 7/10 = 25/30 + 21/30 = 46/30 = 23/15 = 1 8/15л) 2 1/3 + 1/6 = 2 2/6 + 1/6 = 2 3/6 = 2 1/2м) 2 1/2 + 3/10 = 2 5/10 + 3/10 = 2 8/10 = 2 4/5н) 6 - 3 4/5 = 5 5/5 - 3 4/5 = 2 1/5о) 4 3/4 - 2 1/8 = 4 6/8 - 2 1/8 = 2 7/8р) 4 1/14 - 1 5/21 = 4 3/42 - 1 10/42 = 3 45/42 - 1 10/42 = 2 35/42 = 2 5/6р)4 1/14 - 1 5/21 = 4 3/42 - 1 10/42 = 3 45/42 - 1 10/42 = 2 35/42 = 2 5/6с)5 2/15 - 2 3/10 = 5 4/30 - 2 9/30 = 4 34/30 - 2 9/30 = 2 25/30 = 2 5/6т) 4 1/8 - 1 3/10 4 5/40 - 1 12/40 = 3 45/40 - 1 12/40 = 1 33/40д) 3 2/5 - 4/5 - 4/15 = 2 4/5 - 4/5 - 4/15 = 2 - 4/15 = 1 15/15 - 4/15 = 1 11/15е) 4 + 2 3/4 - 5 7/8 = 6 3/4 - 5 7/8 = 6 8/8 - 5 7/8 = 1 1/8