Can u help me with these four questions I don’t understand

3) 28 tails out of 60 total flips = 28/60 = 7/15
4) 4, 5, 6 are the rolls for "4 or greater" and there are 6 total rolls = 4/6 = 2/3
5) 4 alarm clocks out of 10 total clocks = 4/10 = 2/5
6) 7 chocolate out of 16 total pastries = 7/16