[tex]3 \frac{1}{15} - 1 \frac{1}{10} = 3 \frac{10}{150} - 1 \frac{15}{150} = 2 \frac{160}{150} - 1 \frac{15}{150} = 1 \frac{145}{150} = 1 \frac{29}{30} [/tex]
[tex]5 \frac{5}{13} - 3 \frac{1}{2} = 5 \frac{10}{26} - 3 \frac{13}{26} = 4 \frac{36}{26} - 3 \frac{13}{26} = 1 \frac{23}{26} [/tex]
Myślę że pomogłem ;)
