4 2/5 - 3 6/7 - 2,7 + 13 3/7 =
1. 4 2/5 - 3 6/7 = 4 14/35 - 3 30/35 = 3 49/35 - 3 30/35 = 19/35
2. 19/35 - 2,7 = 19/35 - 2 7/10 = 19/35 - 27/10 = 38/70 - 189/70=-151/70=-2 11/70
3. - 2 11/70 + 13 3/7= - 2 11/70 + 13 30/70= 13 30/70 - 2 11/70 = 11 19/70
- A + B - C - D
при заданных значениях, получаем:
+ 4 2\5 - 3 6\7 - 2.7 + 13 3\7 = (4.4 - 2.7) + ( 13 3\7 - 3 6\7) = 1.7 + (12 10\7 - 3 6\7) =
= 1.7 + 9 4\7 = 17\10 + 67\7 = 119\70 + 670\70 = 789\70 = 11.271
4 2/5 - 3 6/7 - 2,7 + 13 3/7 =
1. 4 2/5 - 3 6/7 = 4 14/35 - 3 30/35 = 3 49/35 - 3 30/35 = 19/35
2. 19/35 - 2,7 = 19/35 - 2 7/10 = 19/35 - 27/10 = 38/70 - 189/70=-151/70=-2 11/70
3. - 2 11/70 + 13 3/7= - 2 11/70 + 13 30/70= 13 30/70 - 2 11/70 = 11 19/70
- A + B - C - D
при заданных значениях, получаем:
+ 4 2\5 - 3 6\7 - 2.7 + 13 3\7 = (4.4 - 2.7) + ( 13 3\7 - 3 6\7) = 1.7 + (12 10\7 - 3 6\7) =
= 1.7 + 9 4\7 = 17\10 + 67\7 = 119\70 + 670\70 = 789\70 = 11.271