A
[tex]2 - \frac{3}{5} + 1 - \frac{3}{4} = (2 + 1) - ( \frac{3}{5} - \frac{3}{4} ) = 3 - \frac{27}{20} = \frac{33}{20} [/tex]
B
[tex]4 - \frac{2}{3} - 2 - \frac{7}{8} = (4 - 2) - ( \frac{2}{3} - \frac{7}{8} = 2 - \frac{37}{24} = \frac{11}{24} [/tex]
A do takich zadań polecam prothomath
