Learn Class 7 Math - Fractions and Decimals

The term decimal refers to the number system that helps in expressing the fraction & whole numbers. The number present in the decimal consists of a ‘.’ symbol in it. In comparison, the term fraction refers to a number system always presented in the form of a / b.

When we have to convert the decimal number to a fraction, we have to remove the dot, i.e., 1.5 is a decimal number, and when we convert it into a fraction, it will be 15/10, i.e., 3/2. Or 2.5 is a decimal number, whereas 25/10 is a fraction. And it is equal to 5/2.

Types of Decimals

The different types of decimals are discussed here below:

1. Recurring Decimal Number:

• These are the decimals that get repeated. Or they are non-terminating decimals.
• Example: 2.125125 is a finite number. And 2.12121212…. is an infinite number.

2. Decimal fraction:

• The decimal fraction is a type of fraction that contains the power in ten.
• Example: 81.65 = 8165/100.

3. Non-recurring Decimal Number:

• These are the types of decimal numbers that come in the category of non-repeating. Or they are the terminating numbers.
• Example: 2.3476 is a finite number. And 2.1456 is an infinite number.

Learning Videos for 7th Grade Math - Fractions and Decimals