30
Well, isn't that a happy little math problem we have here? To find the value of "blank," we can simply divide 8 by 0.4 (which is 40% as a decimal). So, 8 divided by 0.4 equals 20. And just like that, we've solved our little equation and created a beautiful mathematical landscape together.
30 / 5 = 6
64/8=8
54/8 = 6.75
18.5
8
21
8
56
0.375
17 over 30 is 17/30 or 0.566.... (17 divded by 30)