57,2:11 =
\frac{572}{10}*\frac{1}{11}=\frac{286}{5}*\frac{1}{11}=\frac{286}{55}=5\frac{11}{55}=5\frac{1}{5}=5,2
5,2:\frac{1}{11}=\frac{52}{10}*\frac{11}{1}=\frac{572}{10}=57,2
0,742:1,4=
\frac{742}{1000}:\frac{14}{10}=\frac{742}{1000}*\frac{10}{14}=\frac{742}{1400}=\frac{53}{100}=0,53
\frac{53}{100}*\frac{14}{10}=\frac{742}{1000}=0,742
7,42:14=
\frac{742}{100}*\frac{1}{14}=\frac{742}{1400}=\frac{53}{100}=0,53
\frac{53}{100}:\frac{1}{14}=\frac{53}{100}*14=\frac{742}{100}=7,42
12,012:1,1=
\frac{12012}{1000}:\frac{11}{10}=\frac{12012}{1000}*\frac{10}{11}=\frac{12012}{1100}=\frac{1092}{100}=10,92
\frac{1092}{100}*\frac{11}{10}=\frac{12012}{1000}=12,012
120,12:11
\frac{12012}{100}*\frac{1}{11}=\frac{12012}{1100}=\frac{1092}{100}=10,92