№1
(0,4-11/15)умножить 1 2/7-(7/18 -0,5):1 1/6
№2
(- 3/5 умножить 0,8 - 13/25) умножить 0,7
№3
(-2,6)2 в квадрате - (-3,2) умножить(-3/8)+(-6,56)
Если возможно пожалуйста объясните как решили
Ответы
Ответ дал:
0
№1
![(0,4-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-0,5):1frac{1}{6}= \ \ =(frac{4}{10}-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-frac{5}{10}):1frac{1}{6}= \ \ =(frac{2}{5}-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-frac{1}{2}):1frac{1}{6} (0,4-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-0,5):1frac{1}{6}= \ \ =(frac{4}{10}-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-frac{5}{10}):1frac{1}{6}= \ \ =(frac{2}{5}-frac{11}{15})*1frac{2}{7}-(frac{7}{18}-frac{1}{2}):1frac{1}{6}](https://tex.z-dn.net/?f=%280%2C4-frac%7B11%7D%7B15%7D%29%2A1frac%7B2%7D%7B7%7D-%28frac%7B7%7D%7B18%7D-0%2C5%29%3A1frac%7B1%7D%7B6%7D%3D+%5C++%5C+%3D%28frac%7B4%7D%7B10%7D-frac%7B11%7D%7B15%7D%29%2A1frac%7B2%7D%7B7%7D-%28frac%7B7%7D%7B18%7D-frac%7B5%7D%7B10%7D%29%3A1frac%7B1%7D%7B6%7D%3D+%5C++%5C+%3D%28frac%7B2%7D%7B5%7D-frac%7B11%7D%7B15%7D%29%2A1frac%7B2%7D%7B7%7D-%28frac%7B7%7D%7B18%7D-frac%7B1%7D%7B2%7D%29%3A1frac%7B1%7D%7B6%7D)
![frac{2}{5}-frac{11}{15}=frac{3*2-11}{15}=frac{-5}{15}=-frac{1}{3} \ \ frac{7}{18}-frac{1}{2}=frac{7-9*1}{18}=frac{-2}{18}=-frac{1}{9} \ \ -frac{1}{3}*1frac{2}{7}=-frac{1}{3}*frac{7*1+2}{7}=-frac{1}{3}*frac{9}{7}=-frac{3}{7} \ \ -frac{1}{9}:1frac{1}{6}=-frac{1}{9}:frac{6*1+1}{6}=-frac{1}{9}:frac{7}{6}=-frac{1}{9}*frac{6}{7}=-frac{1}{3}*frac{2}{7}=-frac{2}{21} frac{2}{5}-frac{11}{15}=frac{3*2-11}{15}=frac{-5}{15}=-frac{1}{3} \ \ frac{7}{18}-frac{1}{2}=frac{7-9*1}{18}=frac{-2}{18}=-frac{1}{9} \ \ -frac{1}{3}*1frac{2}{7}=-frac{1}{3}*frac{7*1+2}{7}=-frac{1}{3}*frac{9}{7}=-frac{3}{7} \ \ -frac{1}{9}:1frac{1}{6}=-frac{1}{9}:frac{6*1+1}{6}=-frac{1}{9}:frac{7}{6}=-frac{1}{9}*frac{6}{7}=-frac{1}{3}*frac{2}{7}=-frac{2}{21}](https://tex.z-dn.net/?f=frac%7B2%7D%7B5%7D-frac%7B11%7D%7B15%7D%3Dfrac%7B3%2A2-11%7D%7B15%7D%3Dfrac%7B-5%7D%7B15%7D%3D-frac%7B1%7D%7B3%7D+%5C++%5C+frac%7B7%7D%7B18%7D-frac%7B1%7D%7B2%7D%3Dfrac%7B7-9%2A1%7D%7B18%7D%3Dfrac%7B-2%7D%7B18%7D%3D-frac%7B1%7D%7B9%7D+%5C++%5C+-frac%7B1%7D%7B3%7D%2A1frac%7B2%7D%7B7%7D%3D-frac%7B1%7D%7B3%7D%2Afrac%7B7%2A1%2B2%7D%7B7%7D%3D-frac%7B1%7D%7B3%7D%2Afrac%7B9%7D%7B7%7D%3D-frac%7B3%7D%7B7%7D+%5C++%5C+-frac%7B1%7D%7B9%7D%3A1frac%7B1%7D%7B6%7D%3D-frac%7B1%7D%7B9%7D%3Afrac%7B6%2A1%2B1%7D%7B6%7D%3D-frac%7B1%7D%7B9%7D%3Afrac%7B7%7D%7B6%7D%3D-frac%7B1%7D%7B9%7D%2Afrac%7B6%7D%7B7%7D%3D-frac%7B1%7D%7B3%7D%2Afrac%7B2%7D%7B7%7D%3D-frac%7B2%7D%7B21%7D)
![-frac{3}{7}-(-frac{2}{21})=-frac{3}{7}+frac{2}{21}=frac{2}{21}-frac{3}{7}=frac{2-3*3}{21}=-frac{7}{21}=-frac{1}{3} -frac{3}{7}-(-frac{2}{21})=-frac{3}{7}+frac{2}{21}=frac{2}{21}-frac{3}{7}=frac{2-3*3}{21}=-frac{7}{21}=-frac{1}{3}](https://tex.z-dn.net/?f=-frac%7B3%7D%7B7%7D-%28-frac%7B2%7D%7B21%7D%29%3D-frac%7B3%7D%7B7%7D%2Bfrac%7B2%7D%7B21%7D%3Dfrac%7B2%7D%7B21%7D-frac%7B3%7D%7B7%7D%3Dfrac%7B2-3%2A3%7D%7B21%7D%3D-frac%7B7%7D%7B21%7D%3D-frac%7B1%7D%7B3%7D)
№2
![(-frac{3}{5}*0,8-frac{13}{25})*0,7=(-frac{3}{5}*frac{8}{10}-frac{13}{25})*frac{7}{10}=(-frac{3}{5}*frac{4}{5}-frac{13}{25})*frac{7}{10} \ \ -frac{3}{5}*frac{4}{5}=-frac{3*4}{5*5}=-frac{12}{25} \ \ -frac{12}{25}-frac{13}{25}=frac{-12-13}{25}=-frac{25}{25}=-1 \ \ -1*frac{7}{10}=-frac{7}{10} (-frac{3}{5}*0,8-frac{13}{25})*0,7=(-frac{3}{5}*frac{8}{10}-frac{13}{25})*frac{7}{10}=(-frac{3}{5}*frac{4}{5}-frac{13}{25})*frac{7}{10} \ \ -frac{3}{5}*frac{4}{5}=-frac{3*4}{5*5}=-frac{12}{25} \ \ -frac{12}{25}-frac{13}{25}=frac{-12-13}{25}=-frac{25}{25}=-1 \ \ -1*frac{7}{10}=-frac{7}{10}](https://tex.z-dn.net/?f=%28-frac%7B3%7D%7B5%7D%2A0%2C8-frac%7B13%7D%7B25%7D%29%2A0%2C7%3D%28-frac%7B3%7D%7B5%7D%2Afrac%7B8%7D%7B10%7D-frac%7B13%7D%7B25%7D%29%2Afrac%7B7%7D%7B10%7D%3D%28-frac%7B3%7D%7B5%7D%2Afrac%7B4%7D%7B5%7D-frac%7B13%7D%7B25%7D%29%2Afrac%7B7%7D%7B10%7D+%5C+%5C+-frac%7B3%7D%7B5%7D%2Afrac%7B4%7D%7B5%7D%3D-frac%7B3%2A4%7D%7B5%2A5%7D%3D-frac%7B12%7D%7B25%7D+%5C+%5C+-frac%7B12%7D%7B25%7D-frac%7B13%7D%7B25%7D%3Dfrac%7B-12-13%7D%7B25%7D%3D-frac%7B25%7D%7B25%7D%3D-1+%5C+%5C+-1%2Afrac%7B7%7D%7B10%7D%3D-frac%7B7%7D%7B10%7D)
№3
![(-2,6)^2-(-3,2)*(-frac{3}{8})+(-6,56)= \ \ (-frac{26}{10})^2-(-frac{32}{10})*(-frac{3}{8})+(-frac{656}{100})=frac{676}{100}-(-frac{16}{5})*(-frac{3}{8})+(-frac{656}{100}) \ \ (-frac{16}{5})*(-frac{3}{8})=frac{(-16)*(-3)}{5*8}=frac{48}{40}=frac{6}{5} \ \ frac{676}{100}-frac{6}{5}=frac{676-20*6}{100}=frac{676-120}{100}=frac{556}{100} \ \ frac{556}{100}+(-frac{656}{100})=frac{556}{100}-frac{656}{100}=frac{556-656}{100}=-frac{100}{100}=-1 (-2,6)^2-(-3,2)*(-frac{3}{8})+(-6,56)= \ \ (-frac{26}{10})^2-(-frac{32}{10})*(-frac{3}{8})+(-frac{656}{100})=frac{676}{100}-(-frac{16}{5})*(-frac{3}{8})+(-frac{656}{100}) \ \ (-frac{16}{5})*(-frac{3}{8})=frac{(-16)*(-3)}{5*8}=frac{48}{40}=frac{6}{5} \ \ frac{676}{100}-frac{6}{5}=frac{676-20*6}{100}=frac{676-120}{100}=frac{556}{100} \ \ frac{556}{100}+(-frac{656}{100})=frac{556}{100}-frac{656}{100}=frac{556-656}{100}=-frac{100}{100}=-1](https://tex.z-dn.net/?f=%28-2%2C6%29%5E2-%28-3%2C2%29%2A%28-frac%7B3%7D%7B8%7D%29%2B%28-6%2C56%29%3D+%5C+%5C+%28-frac%7B26%7D%7B10%7D%29%5E2-%28-frac%7B32%7D%7B10%7D%29%2A%28-frac%7B3%7D%7B8%7D%29%2B%28-frac%7B656%7D%7B100%7D%29%3Dfrac%7B676%7D%7B100%7D-%28-frac%7B16%7D%7B5%7D%29%2A%28-frac%7B3%7D%7B8%7D%29%2B%28-frac%7B656%7D%7B100%7D%29+%5C+%5C+%28-frac%7B16%7D%7B5%7D%29%2A%28-frac%7B3%7D%7B8%7D%29%3Dfrac%7B%28-16%29%2A%28-3%29%7D%7B5%2A8%7D%3Dfrac%7B48%7D%7B40%7D%3Dfrac%7B6%7D%7B5%7D+%5C+%5C+frac%7B676%7D%7B100%7D-frac%7B6%7D%7B5%7D%3Dfrac%7B676-20%2A6%7D%7B100%7D%3Dfrac%7B676-120%7D%7B100%7D%3Dfrac%7B556%7D%7B100%7D+%5C+%5C+frac%7B556%7D%7B100%7D%2B%28-frac%7B656%7D%7B100%7D%29%3Dfrac%7B556%7D%7B100%7D-frac%7B656%7D%7B100%7D%3Dfrac%7B556-656%7D%7B100%7D%3D-frac%7B100%7D%7B100%7D%3D-1)
№2
№3
Ответ дал:
0
Спасибо огромнейшее *О*
Ответ дал:
0
вы меня прям от не спящей ночи спасли :3
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