What is Fraction Are you really interested in fractions? Ok, it's nothing difficult here.
Proper Fraction Let you have a fraction a ⁄ b, then how can you know if it's a proper fraction? It's easy! Look at "a", then look at "b". What is greater?
If "b" is greater than "a" (b > a), it means this time you have a proper fraction.
Improper Fraction Let you have a fraction a ⁄ b, then how can you know if it's an improper fraction? It's easy! Look at "a", then look at "b". What is greater? If "a" is greater than "b" (a > b), or "a" equals "b" (a = b), it means this time you have an improper fraction.
Decimal Fraction If b = 10, 100, 1000 ... (i.e. denominator equals any power of ten with cardinal exponent), this case the fraction is called "decimal fraction".
Numerator So, this time you can say "a" is a numerator of the fraction a ⁄ b. I.e., the number standing above the fraction line is called a numerator.
Denominator So, the number standing under the fraction line is called "denominator".
Greatest Common Divisor (GCD) Let, now your numbers have some divisors, then choose the greatest among them and you'll get the Greatest Common Divisor (GCD) for your numbers.
Least Common Multiple (LCM) It's clear, you always can find not the only "common multiple" for any numbers. If you choose the least among them, you'll get Least Common Multiple (LCM) for your numbers.
Mixed Number Mixed number is a number you can only get from improper fraction by special way. So, any improper fraction may be written as a mixed number, too.
