Respuesta :

26/60 = 39/90 = 52/120 = 65/150 = 78/180 = 91/210 = 104/240 = 117/270 = 130/300 = 143/330 = 156/360 = 169/390 = 182/420 = 195/450 = 208/480 = 221/510 = 234/540 = 247/570 = 260/600, all these fractions are equal to 13/30, hope this helps                                                                              
                                             
                                                                          
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