Tính hợp lý (nếu có thể)
Tính hợp lý (nếu có thể)
----- Nội dung ảnh -----
Bài 2: Tính hợp lý (nếu có thể)
1) \(-\frac{11}{8} - \frac{1}{4} - \frac{3}{8} + 0,5 - \frac{5}{41}\)
2) \(-\left( \frac{3}{7} + \frac{3}{8} \right) - \left( -\frac{3}{8} + \frac{4}{7} \right)\)
3) \(-\frac{5}{17} - \frac{31}{17} - \frac{5}{33} + 2\)
4) \(\frac{12}{17} - \frac{5}{7} - \frac{12}{17} + \frac{2}{4}\)
5) \(2 - \frac{3}{8} + 3\)
6) \(-\frac{3}{11} + \frac{5}{7} - \frac{8}{7} + \frac{2}{5}\)
7) \(-\frac{6}{7} + \frac{19}{31} - \frac{9}{9} - \frac{6}{31}\)
8) \((35,9 - 14,05) - (-14,05 + 35,9 - 9,25) - (2 + 0,25)\)
9) \(\frac{1}{5} + \frac{7}{18} - \frac{5}{25} + \frac{18}{25} - 0,75\)
10) \( \left( \frac{3}{7} + \frac{1}{4} + ... + \frac{91}{90} \right)\)
11) \(-\left( \frac{2}{11} + \frac{3}{13} \right) - \left( -\frac{3}{9} + \frac{9}{11} \right)\)
12) \(\left( 1 + \frac{1}{1.3} \right) \left( 1 + \frac{1}{2.4} \right) \left( 1 + \frac{1}{3.5} \right) ... \left( 1 + \frac{1}{20.22} \right)\)
----- Nội dung ảnh -----
Bài 2: Tính hợp lý (nếu có thể)
1) \(-\frac{11}{8} - \frac{1}{4} - \frac{3}{8} + 0,5 - \frac{5}{41}\)
2) \(-\left( \frac{3}{7} + \frac{3}{8} \right) - \left( -\frac{3}{8} + \frac{4}{7} \right)\)
3) \(-\frac{5}{17} - \frac{31}{17} - \frac{5}{33} + 2\)
4) \(\frac{12}{17} - \frac{5}{7} - \frac{12}{17} + \frac{2}{4}\)
5) \(2 - \frac{3}{8} + 3\)
6) \(-\frac{3}{11} + \frac{5}{7} - \frac{8}{7} + \frac{2}{5}\)
7) \(-\frac{6}{7} + \frac{19}{31} - \frac{9}{9} - \frac{6}{31}\)
8) \((35,9 - 14,05) - (-14,05 + 35,9 - 9,25) - (2 + 0,25)\)
9) \(\frac{1}{5} + \frac{7}{18} - \frac{5}{25} + \frac{18}{25} - 0,75\)
10) \( \left( \frac{3}{7} + \frac{1}{4} + ... + \frac{91}{90} \right)\)
11) \(-\left( \frac{2}{11} + \frac{3}{13} \right) - \left( -\frac{3}{9} + \frac{9}{11} \right)\)
12) \(\left( 1 + \frac{1}{1.3} \right) \left( 1 + \frac{1}{2.4} \right) \left( 1 + \frac{1}{3.5} \right) ... \left( 1 + \frac{1}{20.22} \right)\)