by Sasori Kung fu masta Sun Oct 12 2008, 13:31
FRACTIONS.
Adding & Subtracting:
To add or subtract a fraction you have to find the LEAST COMMON MULTIPLE of LCM of th denominator. (The denominator is the bottom number on the fraction, and the numerator is the top number or the fraction.)
Once you find the LCM, whatever you multiplied those numbers by to get the LCM, you must also multiply the numerators by. then you subtract the numerators, keep the denominators, and then simplify.
(If you need me to I will give an example.)
Multiplying:
This is the easiest.
you multiply the numerators by the denominators and simplify.
Dividing:
I hate explaining this, But I think you have to find the LCM, then you have to find the reciprical of the other number.
which is just flipping that fraction over, making the numerator the denominator and the denominator the numerator, then you multiply it. (Yes multipy. dont ask why.)
EDIT: Btw fractions are my math weakness, so sorry if i missed any.