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) $1 \frac{5}{6} *3 \frac{3}{5} :2 \frac{1}{5}= \frac{11}{6} * \frac{18}{5} : \frac{11}{5}=\frac{11}{6} * \frac{18}{5} * \frac{5}{11}= \frac{11*18*5}{6*5*11} =3$