Выполните действия: а) 11 2/7+4 3/7-6 4/7 б) 26 7/19-13 4/19+5 2/19 в) 44 2/9+8 5/9-7/9 г) 5 7/10+3 9/10+1 3/10 д) 3 17/100-2 13/100-1 е) 8-4 31/100 - 2 57/100

а) 11 2/7+4 3/7-6 4/7 = 11 + 4 - 6 + 2/7+3/7 - 4/7 = 9 + 1/7 = 9 1/7

б) 26 7/19-13 4/19+5 2/19 = 26 - 13 + 5 + 7/19 - 4/19 + 2/19 = 18 + 5/19 = 18 5/19

в) 44 2/9+8 5/9-7/9 = 44 + 8 + 2/9 + 5/9 - 7/9 = 52

г) 5 7/10+3 9/10+1 3/10 = 5 + 3 + 1 + 7/10 + 9/10 + 3/10 = 9 + 19/10 = 10 + 9/10 = 10 9/10

д) 3 17/100-2 13/100-1 = 3-2-1 + 17/100-13/100 = 1 + 4/100 = 1 1/25

е) 8-4 31/100 - 2 57/100 = 8 - 4 - 2 - 31/100 - 57/100 = 1 + 100/100 - 57/100 - 31/100 = 1 + 22/100 = 1 11/50