5.3333
0.75
15
(1/3) / (5/16) = (1/3) * (16/5) = 16/15
7/8 divided by 2/3 = 15/16
No. All three are not prime numbers. A prime number is a number that is only divisible by itself and 1. 15 can be divided by 1, 3, 5 and 15 16 can be divided by 1, 2, 4, 8 and 16 18 can be divided by 1, 2, 3, 6, 9 and 18.
1.5
3.2
3/4 divided by 4/5 is 0.9375 or 15/16.
0.75
0.1875
16