a)
[tex]15 \frac{5}{8} + 1 \frac{6}{7} = 15 \frac{35}{56} + 1 \frac{48}{56} = 16 \frac{83}{56} = 17 \frac{27}{56} [/tex]
b)
[tex]12 \frac{9}{10} + 9 \frac{3}{4} = 12 \frac{18}{20} + 9 \frac{15}{20} = 21 \frac{33}{20} = 22 \frac{13}{20} [/tex]
c)
[tex]14 \frac{7}{12} + 2 \frac{7}{16} = 14 \frac{28}{48} + 2 \frac{21}{48} = 16 \frac{49}{48} = 17 \frac{1}{48} [/tex]
d)
[tex]21 \frac{13}{27} + 16 \frac{17}{18} = 21 \frac{26}{54} + 16 \frac{51}{54} = 37\frac{77}{54} = 38 \frac{23}{54} [/tex]
Myślę że pomogłem ;)
