Respuesta :
3/4 of an hour= 45minutes
1/3 of 45 =15minutes
so u jump rope for 15 minutes
15/60=1/4
jump rope for 1/4 of the hour
1/3 of 45 =15minutes
so u jump rope for 15 minutes
15/60=1/4
jump rope for 1/4 of the hour