3/4 m = 2 1/15 - 59/60
3/4 m = 31/15 - 59/60
3/4 m = 124/60 - 59/60
3/4 m = 65/60
m =65/60 : 3/4
m = 65/45 = 13/9
m = 1 4/9
3/4 m = 2 1/15 - 59/60
3/4 m = 31/15 - 59/60
3/4 m = 124/60 - 59/60
3/4 m = 65/60
m =65/60 : 3/4
m = 65/45 = 13/9
m = 1 4/9