Definitions [5]
A fraction is a numerical quantity that represents a part of a whole.
A fraction that contains a whole number and a proper fraction is called a mixed fraction.
`3 2/3, 4 2/3, 3 7/8` are all examples of mixed fractions.
If two or more fractions have the same value, they are called equivalent or equal fractions.
E.g., `1/3`, `3/9`, `6/18` and `9/27` are equivalent fractions.
The product of the numerator of the first and the denominator of the second is equal to the product of the denominator of the first and the numerator of the second. These two products are called cross-products.
`a/b = c/d`
`a xx d = c xx b`.
A fraction is said to be in the simplest (or lowest) form if its numerator and denominator have no common factor except 1.
`4/3, 2/5` etc. are examples of the simplest form of a fraction.
