Oblicz:

[tex]a) 2.4 + \frac{2}{3} = [/tex]
[tex]b)2 \frac{7}{20} + 5.3 = [/tex]
[tex]c)1 \frac{3}{5} - 3.8 = [/tex]
[tex]d)0.7 - 4 \frac{2}{7} = [/tex]
​