2,6-1\frac{2}{3}=2\frac{3}{5}-1\frac{2}{3}=2\frac{9}{15}-1\frac{10}{15}=1\frac{24}{15}-1\frac{10}{15}=\frac{14}{15}
3,25=3\frac{1}{4}
1\frac{3}{5}+3\frac{1}{4}=1\frac{12}{20}+3\frac{5}{20}=4\frac{17}{20}
0,056*100=5,6
(0,2)^3=0,2*0,2*0,2=0,008
1\frac{5}{8}:3,25=\frac{13}{8}:3\frac{1}{4}=\frac{13}{8}*\frac{4}{13}= po skróceniu liczb 13 i 13 oraz 8 i 4 =\frac{1}{2}