Ответ: 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