(1/2+1/3+1/6)*24:5-9/22:15/121решите

$( frac{1}{2} + frac{1}{3}+ frac{1}{6})*24:5-frac{9}{22}: frac{15}{121}=1,5$

1) $frac{1}{2}+ frac{1}{3}= frac{3*1+2*1}{6}= frac{3+2}{6}= frac{5}{6}$

2) $frac{5}{6}+ frac{1}{6}= frac{5+1}{6}= frac{6}{6}=1$

3) $1*24 = 24$

4) $24:5=4,8$

5) $frac{9}{22} : frac{15}{121}= frac{9}{22}* frac{121}{15}= frac{3}{2}* frac{11}{5}= frac{33}{10}=3,3$

6) $4,8 - 3,3 = 1,5$