Odpowiedź:
a) [tex] - 0.9 + 1 \frac{1}{4} = - 0.9 + 1.25 = 0.35[/tex]
b) [tex]2.6 - ( - 1.8) = 2.6 + 1.8 = 4.4[/tex]
c) [tex]15 \frac{5}{18} + 124 \frac{7}{12} = 15 \frac{10}{36} + 124 \frac{21}{36} = 139 \frac{31}{36} [/tex]
d) [tex]7 \frac{3}{8} - 1 \frac{3}{4} = 6 \frac{11}{8} - 1 \frac{6}{8} = 5 \frac{5}{8} [/tex]
