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  0 1

  maryla345 17.11.2010 (14:56)

  2/3+1/8=16/24+3/24=19/24
  5/12+1/6=5/12+2/12=7/12
  1 3/5+2 1/2=1 6/10+2 1/2=1 6/10+2 5/10=3 11/10=4 1/10
  3 1/2-1 3/4=6/2-7/4=12/4-7/4=5/4=1 1/4
  2 1/6-1 2/3=12/6-5/3=13/6-10/6=3/6=1/2
  7 1/5-2 3/4=36/5-11/4=144/20-55/20=89/20=4 9/20
  6/5-7/15+2/3=18/15-7/15+10/15=21/15=1 2/5
  1 1/2-2/3+2 5/6=9/6-4/6+17/6=22/6=3 2/3
  7 10/35+5 4/7-3 2/5=255/35+39/7-17/5=255/35+195/35-119/35=331/35=9 16/35
  1 13/25+17/25=-1 4/5=38/25+17/25-45/25=10/25=2/5
  1 1/2+5 1/4=3/2+10/4=6/4+10/4=16/4=4

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  Konto usunięte, 18.11.2010 (11:01)

  \frac{2}{3}+\frac{1}{8}=\frac{16}{24}+\frac{3}{24}=\frac{19}{24}
  
  
  \frac{5}{12}+\frac{1}{6}=\frac{5}{12}+\frac{2}{12}=\frac{7}{12}
  
  
  1\frac{3}{5}+2\frac{1}{2}=\frac{8}{5}+\frac{5}{2}=\frac{16}{10}+\frac{25}{10}=\frac{41}{10}=4\frac{1}{10}=4,1
  
  
  3\frac{1}{2}-1\frac{3}{4}=\frac{7}{2}-\frac{7}{4}=\frac{14}{4}-\frac{7}{4}=\frac{7}{4}=1\frac{3}{4}=1,75
  
  
  2\frac{1}{6}-1\frac{2}{3}=\frac{13}{6}-\frac{5}{3}=\frac{13}{6}-\frac{10}{6}=\frac{3}{6}=\frac{1}{2}=0,5
  
  
  7\frac{1}{5}-2\frac{3}{4}=\frac{36}{5}-\frac{11}{4}=\frac{144}{20}-\frac{55}{20}=\frac{89}{20}=4\frac{9}{20}=4,45
  
  
  \frac{6}{5}-\frac{7}{15}+\frac{2}{3}=\frac{18}{15}-\frac{7}{15}+\frac{10}{15}=\frac{28}{15}-\frac{7}{15}=\frac{21}{15}=\frac{7}{5}=1\frac{2}{5}=1,4
  
  
  1\frac{1}{2}-\frac{2}{3}+2\frac{5}{6}=\frac{3}{2}-\frac{2}{3}+\frac{17}{6}=\frac{9}{6}-\frac{4}{6}+\frac{17}{6}=\frac{26}{6}-\frac{4}{6}=\frac{22}{6}=3\frac{4}{6}=3\frac{2}{3}
  
  
  7\frac{10}{35}+5\frac{4}{7}-3\frac{2}{5}=\frac{255}{35}+\frac{39}{7}-\frac{17}{5}=\frac{255}{35}+\frac{195}{35}-\frac{119}{35}=\frac{450}{35}-\frac{119}{35}=
  
  =\frac{331}{35}=9\frac{16}{35}
  
  
  1\frac{13}{25}+\frac{17}{25}-1\frac{4}{5}=\frac{38}{25}+\frac{17}{25}-\frac{9}{5}=\frac{38}{25}+\frac{17}{25}-\frac{45}{25}=\frac{55}{25}-\frac{45}{25}=\frac{10}{25}=
  
  =\frac{2}{5}=0,4
  
  
  1\frac{1}{2}+5\frac{1}{4}=\frac{3}{2}+\frac{21}{4}=\frac{6}{4}=\frac{27}{4}=6\frac{3}{4}=6,75
  
  Pzdr

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