title: How to convert a float value in to Min:Sec
body: <p>i'm trying to convert my second in min:sec. My code is: </p>
  
  <pre><code>- (IBAction)calcola:(id)sender 
  {
      float grandezzaKB= [[fieldGrandezza text] floatValue];
      float velocitaMbps= [[fieldVelocita text] floatValue] ;
      float grandezzaMB= grandezzaKB*1000;
      float velocitakB = velocitaMbps*128;
      float secondiTotali = grandezzaMB/velocitakB;
      float min = secondiTotali / 60;
  
      NSString *risultato = [NSString stringWithFormat:@"%.02f minuti" ,min];
  
      [labelRisultato setText:risultato];
  }
  </code></pre>
  
  <p>Sorry if it isn't english but i'm italian :D Someone can help me?
  i've already tried with the mod but it doesn't work with float :(
  Sorry if the code isn't perfect, but i'm a newbie :)</p>