The diameter of a circle whose circumference is 314 is about 1 (99.95).
5/31 ÷ 15/23 = 23/93
9.9975
Don't get cared by the decimal, it's just a point. It means: divide by 10^n where n is the number of digits after the decimal. So in this case, 3.14 means 314 / 10^2 = 314 / 100 so you are actually doing this 314/100 x 4 = 314 x 1/100 x 4. Multiplication is commutative so you might as well do 4 x 314, then divide by 100. So you should get 1256 / 100. To divide by 100, recall what decimal means, it's simply 12.56 :D
The square root of 3.14 is: ± 1.772005
273/300
17/2
33/100
Two thirds
One Eighth
7.14 = 714/100
50% is half.
It is: 1/4
13/100
1/5
1 1/3
40% = 2/5