Q: What are the most accurate fraction for Pi?

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main fraction:22/7 most accurate fraction:355/133

Pi is infinite. It can't be converted into a accurate fraction. 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196 4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273 724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609...

Since pi is irrational, there is (by definition) no way to express it as an exact fraction. Even so, many people write it as 22/7, which is a fairly accurate representation. But it is not exact!

According to most news sources (and Wikipedia), the most accurate calculation of pi currently stands at five trillion digits (5,000,000,000,000 digits!) That's quite a lot.

22/7

Related questions

main fraction:22/7 most accurate fraction:355/133

Pi, being irrational, has an endless number of digits to the right of the decimal, as you know. But for almost any application, even basic engineering, a value of 3.1417 is highly accurate.

Pi is infinite. It can't be converted into a accurate fraction. 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196 4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273 724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609...

Since pi is irrational, there is (by definition) no way to express it as an exact fraction. Even so, many people write it as 22/7, which is a fairly accurate representation. But it is not exact!

According to most news sources (and Wikipedia), the most accurate calculation of pi currently stands at five trillion digits (5,000,000,000,000 digits!) That's quite a lot.

22/7

PI = 3.14159265... Most famous fraction is 22/7 = 3.142857... However better is 355/113 = 3.14159292... Ratty

22/7 is fairly accurate to 2 decimal places: 3.14 and it the most commonly used one. 333/106 is accurate to the first 4 decimal places: 3.1415 355/113 is accurate to the first 6 decimal places: 3.141592

most likely 2/7

355/113, originally from China. It's value is 3.14159292035, accurate to 6 decimal places.

The equivalency of Pi in a fraction is 22/7.

Archimedes