Ответы
Ответ дал:
0
1 пример.
1)
![6 frac{3}{4} div 4 frac{1}{2} = frac{27}{4} div frac{9}{2} = frac{27 times 2}{4 times 9} = frac{3}{2} 6 frac{3}{4} div 4 frac{1}{2} = frac{27}{4} div frac{9}{2} = frac{27 times 2}{4 times 9} = frac{3}{2}](https://tex.z-dn.net/?f=6+frac%7B3%7D%7B4%7D++div+4+frac%7B1%7D%7B2%7D++%3D++frac%7B27%7D%7B4%7D++div++frac%7B9%7D%7B2%7D+++%3D++frac%7B27+times+2%7D%7B4+times+9%7D++%3D++frac%7B3%7D%7B2%7D+)
2)
![frac{3}{2} + 2 frac{5}{7} = frac{3}{2} + frac{19}{7} = frac{21 + 38}{14} = frac{59}{14} frac{3}{2} + 2 frac{5}{7} = frac{3}{2} + frac{19}{7} = frac{21 + 38}{14} = frac{59}{14}](https://tex.z-dn.net/?f=+frac%7B3%7D%7B2%7D++%2B+2+frac%7B5%7D%7B7%7D++%3D++frac%7B3%7D%7B2%7D++%2B++frac%7B19%7D%7B7%7D++%3D++frac%7B21+%2B+38%7D%7B14%7D++%3D++frac%7B59%7D%7B14%7D+)
3)
![frac{59}{14} div 8 frac{3}{7} = frac{59}{14} div frac{59}{7} = frac{59 times 7}{14 times 59} = frac{1}{2} frac{59}{14} div 8 frac{3}{7} = frac{59}{14} div frac{59}{7} = frac{59 times 7}{14 times 59} = frac{1}{2}](https://tex.z-dn.net/?f=+frac%7B59%7D%7B14%7D++div+8+frac%7B3%7D%7B7%7D++%3D++frac%7B59%7D%7B14%7D+++div++frac%7B59%7D%7B7%7D++%3D++frac%7B59+times+7%7D%7B14+times+59%7D+++%3D++frac%7B1%7D%7B2%7D+)
4)
![frac{1}{2} - frac{2}{5} = frac{5 - 4}{10} = frac{1}{10} = 0.1 frac{1}{2} - frac{2}{5} = frac{5 - 4}{10} = frac{1}{10} = 0.1](https://tex.z-dn.net/?f=+frac%7B1%7D%7B2%7D++-++frac%7B2%7D%7B5%7D++%3D++frac%7B5+-+4%7D%7B10%7D++%3D++frac%7B1%7D%7B10%7D++%3D+0.1)
ОТВЕТ: 1/10= 0,1.
2 пример.
1)
![1 frac{3}{7} + 4 frac{5}{21} = frac{10}{7} + frac{89}{21} = frac{30 + 89}{21} = frac{119}{21} 1 frac{3}{7} + 4 frac{5}{21} = frac{10}{7} + frac{89}{21} = frac{30 + 89}{21} = frac{119}{21}](https://tex.z-dn.net/?f=1+frac%7B3%7D%7B7%7D++%2B+4+frac%7B5%7D%7B21%7D++%3D++frac%7B10%7D%7B7%7D++%2B++frac%7B89%7D%7B21%7D++%3D++frac%7B30+%2B+89%7D%7B21%7D++%3D++frac%7B119%7D%7B21%7D+)
2)
![frac{119}{21} - 5 frac{1}{4} = frac{119}{21} - frac{21}{4} = \ = frac{476 - 441}{84} = frac{35}{84} frac{119}{21} - 5 frac{1}{4} = frac{119}{21} - frac{21}{4} = \ = frac{476 - 441}{84} = frac{35}{84}](https://tex.z-dn.net/?f=+frac%7B119%7D%7B21%7D++-+5+frac%7B1%7D%7B4%7D++%3D++frac%7B119%7D%7B21%7D++-++frac%7B21%7D%7B4%7D++%3D++%5C++%3D++frac%7B476+-+441%7D%7B84%7D++%3D+++frac%7B35%7D%7B84%7D+)
3)
![frac{35}{84} times 1 frac{5}{7} = frac{35 times 12}{84 times 7} = frac{5}{7} frac{35}{84} times 1 frac{5}{7} = frac{35 times 12}{84 times 7} = frac{5}{7}](https://tex.z-dn.net/?f=+frac%7B35%7D%7B84%7D++times+1++frac%7B5%7D%7B7%7D++%3D++frac%7B35+times+12%7D%7B84+times+7%7D++%3D++frac%7B5%7D%7B7%7D+)
4)
![8 frac{1}{4} div 2 frac{5}{8} = frac{33}{4} div frac{21}{8} = frac{33 times 8}{4 times 21} = frac{22}{7} 8 frac{1}{4} div 2 frac{5}{8} = frac{33}{4} div frac{21}{8} = frac{33 times 8}{4 times 21} = frac{22}{7}](https://tex.z-dn.net/?f=8+frac%7B1%7D%7B4%7D++div+2+frac%7B5%7D%7B8%7D++%3D++frac%7B33%7D%7B4%7D++div++frac%7B21%7D%7B8%7D++%3D+++frac%7B33+times+8%7D%7B4+times+21%7D++%3D++frac%7B22%7D%7B7%7D+)
![frac{5}{7} + frac{22}{7} = frac{27}{7} = 3frac{6}{7} frac{5}{7} + frac{22}{7} = frac{27}{7} = 3frac{6}{7}](https://tex.z-dn.net/?f=+frac%7B5%7D%7B7%7D++%2B++frac%7B22%7D%7B7%7D++%3D++frac%7B27%7D%7B7%7D++%3D++3frac%7B6%7D%7B7%7D+)
ОТВЕТ: 3 целых и 6/7
1)
2)
3)
4)
ОТВЕТ: 1/10= 0,1.
2 пример.
1)
2)
3)
4)
ОТВЕТ: 3 целых и 6/7
Ответ дал:
0
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