Like Fraction:
A like fraction is a fraction where the denominators of the fractions are the same. For example, 1/4 and 3/4 are like fractions because they have the same denominator, which is 4. Like fractions are easier to add or subtract because you do not have to find a common denominator.

Unlike Fraction:
An unlike fraction is a fraction where the denominators of the fractions are different. For example, 1/3 and 1/4 are unlike fractions because they have different denominators, which are 3 and 4 respectively. When adding or subtracting unlike fractions, you need to find a common denominator first.

Proper Fraction:
A proper fraction is a fraction where the numerator is less than the denominator. For example, 2/3 is a proper fraction because 2 is less than 3. Proper fractions represent values less than 1.

Improper Fraction:
An improper fraction is a fraction where the numerator is equal to or greater than the denominator. For example, 5/3 is an improper fraction because 5 is greater than 3. Improper fractions can be converted into mixed numbers or whole numbers.

Mixed Fraction:
A mixed fraction is a combination of a whole number and a proper fraction. For example, 1 1/2 is a mixed fraction, where 1 is the whole number and 1/2 is the proper fraction part. Mixed fractions can also be converted into improper fractions for calculations.

Definition of Fractions:
Fractions represent a part of a whole or a ratio of two numbers. They consist of a numerator (the top number) and a denominator (the bottom number). Fractions can be used to represent division, comparison, or measurement in mathematics.