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- Thread starter Satya
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- INXP

use a shredder

That's corny even by INFJ standards.

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- Hey Ho

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- flibble

http://www.mathwizz.com/fractions/help/help4.htm

S

Long Division. It's easier than you think.

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- INXP

http://www.mathwizz.com/fractions/help/help4.htm

Wow, that is neat!

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- INXP

Long Division. It's easier than you think.

I suck at long division.

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I suck at math XD

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- INxJ

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- 4w3

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- INFJ!

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- 6w5 SO

Without a calculator, is there a faster way to reduce fractions than by factoring?

Factoring really isn't that bad. You just have to know the trick for 2, 3, 4, and 5. You'll rarely need anything higher.

http://www.mathwizz.com/fractions/help/help4.htm

Wow, Euclidean Algorithm! I completely forgot about that! Great find!

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Factoring really isn't that bad. You just have to know the trick for 2, 3, 4, and 5. You'll rarely need anything higher

There's a trick?

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- INxJ

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- 4w3

Even numbers can be factored by two.

If you add both digits together and that number is divisible by three, then the original number is divisible by three (63 --> 6+3=9 --> 63 is divisible by three)

I forget the rule to four, but that's okay cuz I never check for four anyways.

If the number ends in a 5 or 0, it is divisible by five.

If a number is divisible by both two and three, then it is divisible by six.

- MBTI
- INXP

Even numbers can be factored by two.

If you add both digits together and that number is divisible by three, then the original number is divisible by three (63 --> 6+3=9 --> 63 is divisible by three)

I forget the rule to four, but that's okay cuz I never check for four anyways.

If the number ends in a 5 or 0, it is divisible by five.

If a number is divisible by both two and three, then it is divisible by six.

Wow, I did not know the tricks for the second and last one. It feels like my elementary education was seriously lacking in the math department. I wonder what the trick for 4 is.

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- INxJ

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- 4w3

There is a pattern with four, like all the other numbers, that's not too hard to figure out:

4, 8, 12, 16, 20 || 24, 28, 32, 36, 40...

ends in: 4, 8, 2, 6, 0 || 4, 8, 2, 6, 0...

So if it's divisible by four, it would end in one of those numbers, in increments of 20