Question

encontre o resultado dos calculos a seguir
8/3+5/4-3/5+2/7

Answer 1

8/3 + 5/4 - 3/5 + 2/7                                            Mínimo múltiplo comum:

                                                                             3, 4, 5, 7         3

                                                                                  1, 4, 5, 7         4

                                                                                    1,1, 5 ,7         5

                                                                                      1,1,1, 7         7

                                                                                          1,1,1,1      

                                                                           3x4x5x7= 420

[8(140) + 5(105) - 3(84) + 2(60)]/240=

[1120 + 525 - 252 + 120]/240=

1513/240