Tính giá trị biểu thức
Tính:
----- Nội dung ảnh -----
7) \( 23 \frac{1}{4} - 13 \frac{1}{7} ; \)
9) \( \left( \frac{5}{4} - \frac{2}{2023} \right) + \left( -\frac{3}{5} \cdot \frac{2022}{2023} \right) ; \)
11) \( \left(-\frac{1}{3} \cdot \frac{3}{10} \right) + \left( \frac{2}{3} - \frac{7}{5} \right) \cdot \frac{3}{5} ; \)
13) \( 21 \frac{1}{5} : \left( -\frac{5}{2} - 16 \frac{1}{5} \right) ; \)
8) \( \frac{9}{100} + \frac{23}{101} - \frac{9}{100} - \frac{81}{101} ; \)
10) \( \left( \frac{1}{4} - \frac{2}{5} \right) : \left( \frac{3}{8} \cdot \frac{3}{5} \right) ; \)
12) \( \left( \frac{4}{15} + \frac{11}{3} \right) + \left( -\frac{8}{5} \cdot \frac{5}{6} \right) ; \)
14) \( \left( 11 : \frac{-19}{13} \right) + \left( 11 : \frac{-7}{13} \right) + 4 \frac{1}{5} ; \)
----- Nội dung ảnh -----
7) \( 23 \frac{1}{4} - 13 \frac{1}{7} ; \)
9) \( \left( \frac{5}{4} - \frac{2}{2023} \right) + \left( -\frac{3}{5} \cdot \frac{2022}{2023} \right) ; \)
11) \( \left(-\frac{1}{3} \cdot \frac{3}{10} \right) + \left( \frac{2}{3} - \frac{7}{5} \right) \cdot \frac{3}{5} ; \)
13) \( 21 \frac{1}{5} : \left( -\frac{5}{2} - 16 \frac{1}{5} \right) ; \)
8) \( \frac{9}{100} + \frac{23}{101} - \frac{9}{100} - \frac{81}{101} ; \)
10) \( \left( \frac{1}{4} - \frac{2}{5} \right) : \left( \frac{3}{8} \cdot \frac{3}{5} \right) ; \)
12) \( \left( \frac{4}{15} + \frac{11}{3} \right) + \left( -\frac{8}{5} \cdot \frac{5}{6} \right) ; \)
14) \( \left( 11 : \frac{-19}{13} \right) + \left( 11 : \frac{-7}{13} \right) + 4 \frac{1}{5} ; \)