Odpowiedź:
[tex] 5\frac{5}{6} + \frac{7}{20} = 5 \frac{50}{60} + \frac{21}{60} [/tex]
[tex]5 \frac{5}{6} + \frac{7}{20} = 5 \frac{50}{60} + \frac{21}{60} = 5 \frac{71}{60} = 6 \frac{11}{60} [/tex]
