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Ответ дал:
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1) 5,12
2)20,35
Не, я хз крч
2)20,35
Не, я хз крч
Ответ дал:
0
1) ![frac{1}{2} * frac{5}{6} = frac{5}{2*6} = frac{5}{12} frac{1}{2} * frac{5}{6} = frac{5}{2*6} = frac{5}{12}](https://tex.z-dn.net/?f=+frac%7B1%7D%7B2%7D+%2A+frac%7B5%7D%7B6%7D+%3D++frac%7B5%7D%7B2%2A6%7D+%3D++frac%7B5%7D%7B12%7D+)
2)![frac{4}{5} * frac{5}{7} = frac{4*5}{5*7} = frac{4}{7} frac{4}{5} * frac{5}{7} = frac{4*5}{5*7} = frac{4}{7}](https://tex.z-dn.net/?f=+frac%7B4%7D%7B5%7D+%2A++frac%7B5%7D%7B7%7D+%3D++frac%7B4%2A5%7D%7B5%2A7%7D+%3D+++frac%7B4%7D%7B7%7D+)
3)![4 * frac{5}{9} = frac{4*5}{9} = frac{20}{9} = 2frac{2}{9} 4 * frac{5}{9} = frac{4*5}{9} = frac{20}{9} = 2frac{2}{9}](https://tex.z-dn.net/?f=+4+%2A+frac%7B5%7D%7B9%7D+%3D++frac%7B4%2A5%7D%7B9%7D+%3D++frac%7B20%7D%7B9%7D+%3D++2frac%7B2%7D%7B9%7D+)
4)![1 frac{1}{2} * frac{2}{3} = frac{3*2}{2*3} = 1 1 frac{1}{2} * frac{2}{3} = frac{3*2}{2*3} = 1](https://tex.z-dn.net/?f=1+frac%7B1%7D%7B2%7D+%2A++frac%7B2%7D%7B3%7D+%3D++frac%7B3%2A2%7D%7B2%2A3%7D+%3D+1)
5)![1frac{1}{3} * 2frac{1}{4} = frac{4*9}{3*4} = frac{9}{3} = 3 1frac{1}{3} * 2frac{1}{4} = frac{4*9}{3*4} = frac{9}{3} = 3](https://tex.z-dn.net/?f=+1frac%7B1%7D%7B3%7D+%2A++2frac%7B1%7D%7B4%7D+%3D++frac%7B4%2A9%7D%7B3%2A4%7D+%3D++frac%7B9%7D%7B3%7D+%3D+3)
1)![frac{8}{9} * frac{1}{3} = frac{8}{9*3} = frac{8}{27} frac{8}{9} * frac{1}{3} = frac{8}{9*3} = frac{8}{27}](https://tex.z-dn.net/?f=+frac%7B8%7D%7B9%7D+%2A++frac%7B1%7D%7B3%7D+%3D++frac%7B8%7D%7B9%2A3%7D+%3D++frac%7B8%7D%7B27%7D+)
2)![frac{8}{9} * frac{3}{5} = frac{8*3}{9*5} = frac{8}{15} frac{8}{9} * frac{3}{5} = frac{8*3}{9*5} = frac{8}{15}](https://tex.z-dn.net/?f=+frac%7B8%7D%7B9%7D+%2A++frac%7B3%7D%7B5%7D+%3D++frac%7B8%2A3%7D%7B9%2A5%7D+%3D++frac%7B8%7D%7B15%7D+)
3)![frac{5}{13} * 3 = 1frac{2}{13} frac{5}{13} * 3 = 1frac{2}{13}](https://tex.z-dn.net/?f=+frac%7B5%7D%7B13%7D+%2A++3+%3D++1frac%7B2%7D%7B13%7D+)
4)![2 frac{1}{2} * frac{2}{5} = 1 2 frac{1}{2} * frac{2}{5} = 1](https://tex.z-dn.net/?f=2+frac%7B1%7D%7B2%7D+%2A++frac%7B2%7D%7B5%7D+%3D++1)
5)![3frac{1}{3} * 1frac{1}{2} = frac{10*3}{3*2} = 5 3frac{1}{3} * 1frac{1}{2} = frac{10*3}{3*2} = 5](https://tex.z-dn.net/?f=+3frac%7B1%7D%7B3%7D+%2A++1frac%7B1%7D%7B2%7D+%3D++frac%7B10%2A3%7D%7B3%2A2%7D+%3D+5)
1)![frac{4}{9} * frac{2}{3} = frac{8}{27} frac{4}{9} * frac{2}{3} = frac{8}{27}](https://tex.z-dn.net/?f=+frac%7B4%7D%7B9%7D+%2A++frac%7B2%7D%7B3%7D+%3D++frac%7B8%7D%7B27%7D+)
2)![frac{7}{8} * 1frac{1}{7} = 1 frac{7}{8} * 1frac{1}{7} = 1](https://tex.z-dn.net/?f=frac%7B7%7D%7B8%7D+%2A++1frac%7B1%7D%7B7%7D+%3D+1)
3)![frac{7}{9} * 2 = 1frac{5}{9} frac{7}{9} * 2 = 1frac{5}{9}](https://tex.z-dn.net/?f=+frac%7B7%7D%7B9%7D+%2A+2+%3D++1frac%7B5%7D%7B9%7D+)
4)![frac{7}{8} * 5frac{1}{3} = 4frac{2}{3} frac{7}{8} * 5frac{1}{3} = 4frac{2}{3}](https://tex.z-dn.net/?f=+frac%7B7%7D%7B8%7D+%2A++5frac%7B1%7D%7B3%7D+%3D++4frac%7B2%7D%7B3%7D+)
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Ответ дал:
0
Спасибо огромное
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