Respostas

  • Usuário do Brainly
2014-03-20T21:52:49-03:00
2/3 - 1/2 = 3/6

3/1*2/1 =6


3/6 *1/6=4/6
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2014-03-20T21:53:58-03:00
1/6.2/7=2/42  simplificando fica 1/21
1 5 1