Question

26. Выполните деиствия​

Answer 1

$1)\;\;\;\;\displaystyle.....=(1,6+1,8)*0,5=3,4 * 0,5=1,7$

$2) ......=\displaystyle1\frac{7}{15} : \frac{22}{10} =\frac{22}{15} *\frac{10}{22} =\frac{10}{15} =\frac{2}{3}$

$3)\;\;\;\;\displaystyle.....=(1\frac{1}{4} +\frac{1}{6})*2\frac{2}{5} =\frac{17}{12} *\frac{12}{5} =\frac{17}{5} =3\frac{2}{5}=3,4$

$4)\;\;\;\;\displaystyle.....=(5\frac{2}{5} -2\frac{1}{3} ):\frac{23}{3} =(5\frac{6}{15}-2\frac{5}{15} )*\frac{3}{23}=3\frac{1}{15} *\frac{3}{23}=\frac{46}{15} *\frac{3}{23}=\frac{2}{5}=0,4$

$5)\;\;\;\displaystyle...=(2\frac{1}{3}+\frac{1}{4} )*\frac{12}{100}=(2\frac{4}{12}+\frac{3}{12} )*\frac{12}{100}=2\frac{7}{12} *\frac{3}{25} =\frac{31}{12}*\frac{12}{100}=\frac{31}{100} =0,31$

$6)\;\;\;\;\displaystyle.....=(7,6-4,75):1,9=2,85:1,9=1,5$