Question 75321
Convert 0.0031515... to its fractional equivalent.
1) n = 0.0031515... Multiply by 1,000.
2) 1,000n = 3.1515... Multiply this by 100.
3) 100,000n = 315.1515... Subtract equation 2) from equation 3)
4) 100,000n - 1,000n = 99,000n = 315.1515-3.1515 = 312 
5) 99,000n = 312  Divide both sides by 99,000
6) {{{n = 312/99000}}} but, from equation 1) n = 0.0031515..., so:
7) {{{0.0031515 = 312/99000}}} Check this out in your calculator.