Срочно 6 класс 116 номер

1)2,7+ 5 \frac{1}{20} = 2 $\frac{2}{10} +5 \frac{1}{20}=\frac{27}{10}+\frac{101}{20} =\frac{54+101}{20} =\frac{155}{20} =\frac{31}{4} 2)57,4:4=14,6 3)[tex]1\frac{1}{6} : 4\frac{2}{3}=\frac{7}{6}:\frac{14}{3} =\frac{1}{4}$
4) $\frac{31}{4} *\frac{8}{10} =\frac{62}{10}=6,2$
5)14,35+ $\frac{1}{4}$ =14,35+0,25=14,6
6)14,6-6,2=8,4
7) $1\frac{2}{3}+\frac{1}{5} = \frac{5}{3}+\frac{1}{5} = \frac{28}{15}$
8) $2\frac{1}{15} -\frac{28}{15}=\frac{31-28}{15} =\frac{3}{15} =\frac{1}{5}$
9)8,4:0,2=42