Question

Выполните действия 2 2/11*7/8:7/11
3 2/3*4 7/8:13/16
1 1/3*2 2/3:4/9
6 4/15*1/2:3 2/15
8 1/3*1 5/7:2 8/21
1 5/6*3 3/5:2 1/5

Answer 1

1) $2 frac{2}{11} * frac{7}{8} : frac{7}{11} = frac{24}{11} * frac{7}{8}* frac{11}{7} = frac{24*7*11}{11*8*7} =3$
2) $3 frac{2}{3} *4 frac{7}{8} : frac{13}{16} =frac{11}{3} * frac{39}{8}*frac{16}{13} = frac{11*39*16}{3*8*13}=22$
3) $1 frac{1}{3} *2 frac{2}{3} : frac{4}{9} = frac{4}{3} * frac{8}{3} * frac{9}{4} = frac{4*8*9}{3*3*4} =8$
4) $6 frac{4}{15} * frac{1}{2} :3 frac{2}{15} = frac{94}{15}* frac{1}{2} :frac{47}{15}= frac{94}{15}* frac{1}{2} *frac{15}{47}= frac{94*1*15}{15*2*47} =1$
5) $8 frac{1}{3} *1 frac{5}{7} :2 frac{8}{21} =frac{25}{3} * frac{12}{7} : frac{50}{21} =frac{25}{3} * frac{12}{7} * frac{21}{50} = frac{25*12*21}{3*7*50} =6$
6) $1 frac{5}{6} *3 frac{3}{5} :2 frac{1}{5}= frac{11}{6} * frac{18}{5} : frac{11}{5}=frac{11}{6} * frac{18}{5} * frac{5}{11}= frac{11*18*5}{6*5*11} =3$