what divide by what equals pi
2007-03-22 17:42:39 · 11 answers · asked by sofia_horsy 1 in Science & Mathematics ➔ Mathematics
22/7 = pi = 3.1416....
Multiplying the numerator (22) and denominator (7) by any same number will also give pi.
2007-03-22 19:54:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Consider a circle with the circumference of 2*pi*r and the diameter of the same circle 2*r, where r is the radius of the circle ( can be any positive real number).Then, if you divide (2*pi*r)/(2*r) you get pi.
Pi is an irrational number so you cannot write it as a fraction a/b ( by definition a rational number can be expressed as a fraction of two integers but irrational numbers cannot).
2007-03-22 17:56:25 · answer #2 · answered by john 1 · 0⤊ 0⤋
The only exact ratio is the circumfrunce of a circle divided by its diameter. Pi is irrational, so there are no two integer numbers whose ratio equals pi. I wanna say 22/7 is close, but its been a while since I've needed to approximate pi.
2007-03-22 17:46:56 · answer #3 · answered by Anonymous · 1⤊ 0⤋
A good approximation may be had with 355/113 but as others have said no two whole numbers will give pi exactly.
2007-03-22 19:59:24 · answer #4 · answered by rethinker 5 · 0⤊ 0⤋
22/7
2007-03-23 03:31:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋
22/7
2007-03-22 17:45:24 · answer #6 · answered by Jay W 1 · 0⤊ 2⤋
By definition C =2piR => pi = C/2R
2007-03-22 17:50:07 · answer #7 · answered by frank 7 · 0⤊ 0⤋
Could also be:
3927/1250.
But remember that Pi is an irrational number. 3927/1250 is only a aprox.
2007-03-22 17:47:14 · answer #8 · answered by Rafael Mateo 4 · 0⤊ 0⤋
Maybe try this.
pi=n/x
3.1416....(approx value of pi)=n/x
let n=any real number
x=n/3.1416....
Wow!! all that math just addled my brain. Maybe I have to think of something normal now like BOYS!!! JUST KIDDING!!!
good luck on your math
2007-03-22 17:58:46 · answer #9 · answered by Anonymous · 0⤊ 0⤋
π is not a rational number. It cannot be expressed as a simple fraction that does not have π in the fraction.
2007-03-22 17:46:30 · answer #10 · answered by novangelis 7 · 1⤊ 0⤋