Решить примеры:

Решение:

17/21 + 8/21 = \(\frac{17+8}{21}\) = \(\frac{25}{21}\)

43/52 - 24/52 = \(\frac{43-24}{52}\) = \(\frac{19}{52}\)

15/67 + 27/67 + 1/67 = \(\frac{15+27+1}{67}\) = \(\frac{43}{67}\)

18/57 - 2/57 + 41/57 = \(\frac{18-2+41}{57}\) = \(\frac{57}{57}\) = 1

95/99 + 40/99 - 34/99 = \(\frac{95+40-34}{99}\) = \(\frac{101}{99}\)

7/16 + 15/16 = \(\frac{7+15}{16}\) = \(\frac{22}{16}\)

3/7 - 1/7 = \(\frac{3-1}{7}\) = \(\frac{2}{7}\)

41/66 + 58/66 + 50/66 = \(\frac{41+58+50}{66}\) = \(\frac{149}{66}\)

70/72 - 65/72 + 55/72 = \(\frac{70-65+55}{72}\) = \(\frac{60}{72}\)

10/12 + 7/12 - 1/12 = \(\frac{10+7-1}{12}\) = \(\frac{16}{12}\)

55/78 + 38/78 = \(\frac{55+38}{78}\) = \(\frac{93}{78}\)

16/93 - 11/93 = \(\frac{16-11}{93}\) = \(\frac{5}{93}\)

3/6 + 4/6 + 1/6 = \(\frac{3+4+1}{6}\) = \(\frac{8}{6}\)

21/31 - 12/31 + 12/31 = \(\frac{21-12+12}{31}\) = \(\frac{21}{31}\)

4/5 + 4/5 - 3/5 = \(\frac{4+4-3}{5}\) = \(\frac{5}{5}\) = 1

61/79 + 53/79 = \(\frac{61+53}{79}\) = \(\frac{114}{79}\)

61/83 - 38/83 = \(\frac{61-38}{83}\) = \(\frac{23}{83}\)

12/99 + 48/99 + 97/99 = \(\frac{12+48+97}{99}\) = \(\frac{157}{99}\)

31/84 - 23/84 + 51/84 = \(\frac{31-23+51}{84}\) = \(\frac{59}{84}\)

32/83 + 37/83 - 35/83 = \(\frac{32+37-35}{83}\) = \(\frac{34}{83}\)

2/9 + 4/9 = \(\frac{2+4}{9}\) = \(\frac{6}{9}\)

7/11 - 2/11 = \(\frac{7-2}{11}\) = \(\frac{5}{11}\)

14/39 + 31/39 + 14/39 = \(\frac{14+31+14}{39}\) = \(\frac{59}{39}\)

38/55 - 3/55 + 42/55 = \(\frac{38-3+42}{55}\) = \(\frac{77}{55}\)

13/30 + 7/30 - 18/30 = \(\frac{13+7-18}{30}\) = \(\frac{2}{30}\)

7/87 + 65/87 = \(\frac{7+65}{87}\) = \(\frac{72}{87}\)

64/84 + 4/84 + 42/84 = \(\frac{64+4+42}{84}\) = \(\frac{110}{84}\)

63/87 - 54/87 + 6/87 = \(\frac{63-54+6}{87}\) = \(\frac{15}{87}\)

25/29 + 18/29 - 4/29 = \(\frac{25+18-4}{29}\) = \(\frac{39}{29}\)

26/53 + 34/53 = \(\frac{26+34}{53}\) = \(\frac{60}{53}\)

37/63 - 14/63 = \(\frac{37-14}{63}\) = \(\frac{23}{63}\)

22/30 + 29/30 + 20/30 = \(\frac{22+29+20}{30}\) = \(\frac{71}{30}\)

29/75 - 19/75 + 55/75 = \(\frac{29-19+55}{75}\) = \(\frac{65}{75}\)

1/3 + 1/3 - 1/3 = \(\frac{1+1-1}{3}\) = \(\frac{1}{3}\)

11/58 + 29/58 = \(\frac{11+29}{58}\) = \(\frac{40}{58}\)

73/90 - 40/90 = \(\frac{73-40}{90}\) = \(\frac{33}{90}\)

88/98 + 27/98 + 45/98 = \(\frac{88+27+45}{98}\) = \(\frac{160}{98}\)

33/62 - 4/62 + 34/62 = \(\frac{33-4+34}{62}\) = \(\frac{63}{62}\)

74/90 + 62/90 - 18/90 = \(\frac{74+62-18}{90}\) = \(\frac{118}{90}\)

3/36 + 7/36 = \(\frac{3+7}{36}\) = \(\frac{10}{36}\)

25/89 - 14/89 = \(\frac{25-14}{89}\) = \(\frac{11}{89}\)

2/31 + 8/31 + 12/31 = \(\frac{2+8+12}{31}\) = \(\frac{22}{31}\)

45/56 - 4/56 + 44/56 = \(\frac{45-4+44}{56}\) = \(\frac{85}{56}\)

28/47 + 30/47 - 5/47 = \(\frac{28+30-5}{47}\) = \(\frac{53}{47}\)

31/90 + 7/90 = \(\frac{31+7}{90}\) = \(\frac{38}{90}\)

43/51 - 35/51 = \(\frac{43-35}{51}\) = \(\frac{8}{51}\)

10/14 + 3/14 + 9/14 = \(\frac{10+3+9}{14}\) = \(\frac{22}{14}\)

24/45 - 24/45 + 43/45 = \(\frac{24-24+43}{45}\) = \(\frac{43}{45}\)

1/3 + 2/3 - 2/3 = \(\frac{1+2-2}{3}\) = \(\frac{1}{3}\)

20/32 + 7/32 = \(\frac{20+7}{32}\) = \(\frac{27}{32}\)

62/84 - 59/84 = \(\frac{62-59}{84}\) = \(\frac{3}{84}\)

88/95 + 37/95 + 90/95 = \(\frac{88+37+90}{95}\) = \(\frac{215}{95}\)

Ответ: Выполнены вычисления для каждого примера.