Предмет: Алгебра,
автор: lanapat
Помогите решить пример (12 4/5*1/8-4 1/11*1/8):11 2/3*7/18
Ответы
Автор ответа:
0
выражением :
![(12 \frac{4}{5} * \frac{1}{8} -4 \frac{1}{11} * \frac{1}{8} ) : 11 \frac{2}{3} * \frac{7}{18} =(12 \frac{44}{55} * \frac{1}{8} - 4 \frac{5}{55} * \frac{1}{8} ) : \frac{35}{3} * \frac{7}{18} = \\ \\
= (12 \frac{44}{55} - 4 \frac{5}{55} ) * \frac{1}{8} * \frac{3}{35} * \frac{7}{18} =8 \frac{39}{55} * \frac{1*1*1}{8*5*6} = \frac{479}{55} * \frac{1}{240} = \frac{479}{13200} (12 \frac{4}{5} * \frac{1}{8} -4 \frac{1}{11} * \frac{1}{8} ) : 11 \frac{2}{3} * \frac{7}{18} =(12 \frac{44}{55} * \frac{1}{8} - 4 \frac{5}{55} * \frac{1}{8} ) : \frac{35}{3} * \frac{7}{18} = \\ \\
= (12 \frac{44}{55} - 4 \frac{5}{55} ) * \frac{1}{8} * \frac{3}{35} * \frac{7}{18} =8 \frac{39}{55} * \frac{1*1*1}{8*5*6} = \frac{479}{55} * \frac{1}{240} = \frac{479}{13200}](https://tex.z-dn.net/?f=%2812+%5Cfrac%7B4%7D%7B5%7D++%2A++%5Cfrac%7B1%7D%7B8%7D++-4+%5Cfrac%7B1%7D%7B11%7D+%2A+%5Cfrac%7B1%7D%7B8%7D+%29+%3A+11+%5Cfrac%7B2%7D%7B3%7D++%2A+%5Cfrac%7B7%7D%7B18%7D+%3D%2812+%5Cfrac%7B44%7D%7B55%7D++%2A++%5Cfrac%7B1%7D%7B8%7D++-+4+%5Cfrac%7B5%7D%7B55%7D+%2A+%5Cfrac%7B1%7D%7B8%7D+%29+%3A++%5Cfrac%7B35%7D%7B3%7D+%2A+%5Cfrac%7B7%7D%7B18%7D+%3D++%5C%5C++%5C%5C+%0A%3D+%2812+%5Cfrac%7B44%7D%7B55%7D++-+4+%5Cfrac%7B5%7D%7B55%7D+%29+%2A++%5Cfrac%7B1%7D%7B8%7D+%2A+%5Cfrac%7B3%7D%7B35%7D+%2A+%5Cfrac%7B7%7D%7B18%7D+%3D8+%5Cfrac%7B39%7D%7B55%7D+%2A+%5Cfrac%7B1%2A1%2A1%7D%7B8%2A5%2A6%7D++%3D++%5Cfrac%7B479%7D%7B55%7D+%2A+%5Cfrac%7B1%7D%7B240%7D+%3D+%5Cfrac%7B479%7D%7B13200%7D+)
по действиям:
![1)12 \frac{4}{5} * \frac{1}{8} = \frac{64}{5} * \frac{1}{8} = \frac{8}{5} = 1,6 \\ \\
2)4 \frac{1}{11} * \frac{1}{8} = \frac{45}{11} * \frac{1}{8} = \frac{45}{88} \\ \\
3) 1,6 - \frac{45}{88} = \frac{8}{5} - \frac{45}{88} = \frac{704-225}{440} = \frac{479}{440} =1 \frac{39}{440} \\ \\
4)1 \frac{39}{440}:11 \frac{2}{3} = \frac{479}{440} : \frac{35}{3} = \frac{479*3}{440*35} = \frac{1437}{15400} \\ \\
5)\frac{1437}{15400} * \frac{7}{18} = \frac{479*1}{2200*6} = \frac{479}{13200} 1)12 \frac{4}{5} * \frac{1}{8} = \frac{64}{5} * \frac{1}{8} = \frac{8}{5} = 1,6 \\ \\
2)4 \frac{1}{11} * \frac{1}{8} = \frac{45}{11} * \frac{1}{8} = \frac{45}{88} \\ \\
3) 1,6 - \frac{45}{88} = \frac{8}{5} - \frac{45}{88} = \frac{704-225}{440} = \frac{479}{440} =1 \frac{39}{440} \\ \\
4)1 \frac{39}{440}:11 \frac{2}{3} = \frac{479}{440} : \frac{35}{3} = \frac{479*3}{440*35} = \frac{1437}{15400} \\ \\
5)\frac{1437}{15400} * \frac{7}{18} = \frac{479*1}{2200*6} = \frac{479}{13200}](https://tex.z-dn.net/?f=1%2912+%5Cfrac%7B4%7D%7B5%7D+%2A+%5Cfrac%7B1%7D%7B8%7D++%3D++%5Cfrac%7B64%7D%7B5%7D+%2A+%5Cfrac%7B1%7D%7B8%7D++%3D++%5Cfrac%7B8%7D%7B5%7D+%3D+1%2C6+%5C%5C++%5C%5C+%0A2%294+%5Cfrac%7B1%7D%7B11%7D+%2A+%5Cfrac%7B1%7D%7B8%7D+%3D++%5Cfrac%7B45%7D%7B11%7D+%2A+%5Cfrac%7B1%7D%7B8%7D+%3D++%5Cfrac%7B45%7D%7B88%7D++%5C%5C++%5C%5C+%0A3%29+1%2C6++-++%5Cfrac%7B45%7D%7B88%7D+%3D++%5Cfrac%7B8%7D%7B5%7D+-+%5Cfrac%7B45%7D%7B88%7D+%3D++%5Cfrac%7B704-225%7D%7B440%7D+%3D++%5Cfrac%7B479%7D%7B440%7D+%3D1+%5Cfrac%7B39%7D%7B440%7D++%5C%5C++%5C%5C+%0A4%291+%5Cfrac%7B39%7D%7B440%7D%3A11+%5Cfrac%7B2%7D%7B3%7D+%3D+%5Cfrac%7B479%7D%7B440%7D+%3A+%5Cfrac%7B35%7D%7B3%7D+%3D+%5Cfrac%7B479%2A3%7D%7B440%2A35%7D+%3D+%5Cfrac%7B1437%7D%7B15400%7D++%5C%5C++%5C%5C+%0A5%29%5Cfrac%7B1437%7D%7B15400%7D+%2A+%5Cfrac%7B7%7D%7B18%7D+%3D+%5Cfrac%7B479%2A1%7D%7B2200%2A6%7D+%3D+%5Cfrac%7B479%7D%7B13200%7D+)
по действиям:
Похожие вопросы
Предмет: Русский язык,
автор: dianazagromova2009
Предмет: Литература,
автор: MyNameIsDoshirak
Предмет: Математика,
автор: tanakisuk1
Предмет: Математика,
автор: BOSS75