5 pairs that multiply to 45

 

  3  |  15
         4  |  11 , 15
5  |  9
      6  |  7, 30
    10  |  4, 30
3 x 15 = 45
(4 x 11) + (4 x 15/60) = 45
5 x 9 = 45
(6 x 7) + (6 x 30/60) = 45
(10 x 4) + (10 x 30/60) = 45


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