Ширина длина площадь
1 360 360
2 180 360
4 90 360
10 36 360. Перебирать можно до ночи.
1.
![\frac{2}{3} \times \frac{9}{14} = \frac{18}{42} = \frac{3}{7}](https://tex.z-dn.net/?f=+%5Cfrac%7B2%7D%7B3%7D++%5Ctimes++%5Cfrac%7B9%7D%7B14%7D+%3D++%5Cfrac%7B18%7D%7B42%7D+++%3D++%5Cfrac%7B3%7D%7B7%7D+)
2.
![\frac{4}{5} \times \frac{15}{16} = \frac{60}{80} = \frac{30}{40} = \frac{3}{4}](https://tex.z-dn.net/?f=+%5Cfrac%7B4%7D%7B5%7D++%5Ctimes++%5Cfrac%7B15%7D%7B16%7D++%3D++%5Cfrac%7B60%7D%7B80%7D++%3D++%5Cfrac%7B30%7D%7B40%7D++%3D++%5Cfrac%7B3%7D%7B4%7D+)
3.
![\frac{3}{7} \times \frac{8}{21} = \frac{24}{147} = \frac{8}{49}](https://tex.z-dn.net/?f=+%5Cfrac%7B3%7D%7B7%7D++%5Ctimes++%5Cfrac%7B8%7D%7B21%7D++%3D++%5Cfrac%7B24%7D%7B147%7D++%3D++%5Cfrac%7B8%7D%7B49%7D+)
4.
![\frac{12}{23} \times 1 = \frac{12}{23}](https://tex.z-dn.net/?f=+%5Cfrac%7B12%7D%7B23%7D++%5Ctimes+1+%3D++%5Cfrac%7B12%7D%7B23%7D+)
5.
![\frac{17}{39} \times 0 = 0](https://tex.z-dn.net/?f=+%5Cfrac%7B17%7D%7B39%7D++%5Ctimes+0+%3D+0)
6.
![\frac{2}{5} \div \frac{4}{5} = \frac{2}{5} \times \frac{5}{4} = \frac{10}{20} = \frac{1}{2}](https://tex.z-dn.net/?f=+%5Cfrac%7B2%7D%7B5%7D++%5Cdiv++%5Cfrac%7B4%7D%7B5%7D++%3D++%5Cfrac%7B2%7D%7B5%7D++%5Ctimes++%5Cfrac%7B5%7D%7B4%7D++%3D++%5Cfrac%7B10%7D%7B20%7D++%3D++%5Cfrac%7B1%7D%7B2%7D+)
7.
![\frac{3}{7} \div \frac{9}{14} = \frac{3}{7} \times \frac{14}{9} = \frac{42}{63} = \frac{2}{3}](https://tex.z-dn.net/?f=+%5Cfrac%7B3%7D%7B7%7D++%5Cdiv++%5Cfrac%7B9%7D%7B14%7D++%3D++%5Cfrac%7B3%7D%7B7%7D++%5Ctimes++%5Cfrac%7B14%7D%7B9%7D++%3D++%5Cfrac%7B42%7D%7B63%7D++%3D++%5Cfrac%7B2%7D%7B3%7D+)
8.
![\frac{5}{8} \div \frac{1}{40} = \frac{5}{8} \times \frac{40}{1} = \frac{200}{8} = \frac{25}{1} = 25](https://tex.z-dn.net/?f=+%5Cfrac%7B5%7D%7B8%7D++%5Cdiv++%5Cfrac%7B1%7D%7B40%7D++%3D++%5Cfrac%7B5%7D%7B8%7D++%5Ctimes++%5Cfrac%7B40%7D%7B1%7D++%3D++%5Cfrac%7B200%7D%7B8%7D++%3D++%5Cfrac%7B25%7D%7B1%7D++%3D+25)
9.
![\frac{3}{17} \div \frac{2}{51} = \frac{3}{17} \times \frac{51}{2} = \frac{153}{34} = \frac{9}{2} = 4 \frac{1}{2}](https://tex.z-dn.net/?f=+%5Cfrac%7B3%7D%7B17%7D++%5Cdiv++%5Cfrac%7B2%7D%7B51%7D++%3D++%5Cfrac%7B3%7D%7B17%7D++%5Ctimes++%5Cfrac%7B51%7D%7B2%7D++%3D++%5Cfrac%7B153%7D%7B34%7D++%3D++%5Cfrac%7B9%7D%7B2%7D++%3D+4+%5Cfrac%7B1%7D%7B2%7D+)
10.
![\frac{2}{11} \div \frac{4}{77} = \frac{2}{11} \times \frac{77}{4} = \frac{154}{44} = \frac{7}{2} = 3 \frac{1}{2}](https://tex.z-dn.net/?f=+%5Cfrac%7B2%7D%7B11%7D++%5Cdiv++%5Cfrac%7B4%7D%7B77%7D++%3D++%5Cfrac%7B2%7D%7B11%7D++%5Ctimes++%5Cfrac%7B77%7D%7B4%7D++%3D++%5Cfrac%7B154%7D%7B44%7D++%3D++%5Cfrac%7B7%7D%7B2%7D++%3D+3+%5Cfrac%7B1%7D%7B2%7D+)
11.
![\frac{3}{4} \times 2 = \frac{6}{4} = 1 \frac{1}{2}](https://tex.z-dn.net/?f=+%5Cfrac%7B3%7D%7B4%7D++%5Ctimes+2+%3D++%5Cfrac%7B6%7D%7B4%7D++%3D+1+%5Cfrac%7B1%7D%7B2%7D+)
Больше не могу. Сам(а) доделывай
120 - 24 = 96 коров останется
пусть х будут весь корм
х : 120 = 4 ( весь корм делим на 120 коров, им его хватило на 4 месяца)
х = 120 * 4
х = 480
480 : 96 = 5 месяцев
Итак,вначале узнаем сколько занимает морковь:
Пусть 672 кг это 1 целая
1)1-1/5-3/8=17/40-это морковь
Теперь узнаем килограммы:
2)672*17/40=285.6 кг-морковь
ОТВЕТ:285.6кг-морковь
1)73850:10550=7
2)7*7=49
3)950-946=4
4)4+29996=30000
5)30000-29450=550
6)550-49=501