__Decimals__

The numbers which are expressed in decimal forms are called decimals. In order, decimal has two parts; whole number part and decimal part and these parts are separated by a dot (.).

**Example 1**

Find whole-number part and decimal part from 43.17

**Solution**

Decimal has two parts; whole number part and decimal part and these parts are separated by a dot (.)

The left side of decimal point is called whole number part.

Hence, the whole number part in the given number is = 43

The right side of decimal point is called decimal part.

Hence, the decimal part in the given number is = 17

**Example 2**

Find whole-number part and decimal part from 78.9

**Solution**

Decimal has two parts; whole number part and decimal part and these parts are separated by a dot (.)

The left side of decimal point is called whole number part

Hence, the whole number part in the given number is = 78

The right side of decimal point is called decimal part

Hence, the decimal part in the given number is = 9

## Like and Unlike Decimals

### Like Decimals

Like Decimals are decimals having the same number of digit after the decimal point or an equal number of Decimal places.

### Unlike Decimals

Unlike Decimals are decimals having unequal number of digit after the decimal point or unequal number of Decimal places.

### Examples on Like and Unlike decimals

**Example 1**

Find the Like Decimals in the given sets of Decimals ?

6.9, 7.15, 17.26

**Solution**

Decimal Numbers, having the same number of Decimal places are called Like Decimals.

The number of Decimal places in 6.9 is 1

The number of Decimal places in 7.15 is 2

The number of Decimal places in 17.26 is 2

Hence, 17.26 and 7.15 are Like Decimals since these two numbers have 2 Decimal places, while 6.9 has only 1 Decimal place

**Example 2**

Find the Like Decimals in the given sets of Decimals ?

12.52, 24.61, 12.1

**Solution**

Decimal Numbers, having the same number of Decimal places are called Like Decimals.

The number of Decimal places in 12.52 is 2

The number of Decimal places in 24.61 is 2

The number of Decimal places in 12.1 is 1

Hence, 12.52 and 24.61 are Like Decimals since these two numbers have 2 Decimal places, while 12.1 has only 1 Decimal place

**Example 3**

Find the Unlike Decimal in the given sets of Decimals?

4.21, 6.374, 7.274, 6.284

**Solution**

Where the number of Decimal places in two Decimals are different, they are called Unlike Decimals.

The number of Decimal places in 4.21 is 2

The number of Decimal places in 6.374 is 3

The number of Decimal places in 7.274 is 3

The number of Decimal places in 6.284 is 3

Hence, 4.21 is the Unlike Decimal amongst the given Decimals since it has only 2 Decimal place while all other numbers have 3 Decimal places.

**Example 4**

Find the unlike Decimal in the given sets of Decimals?

11.32, 25.3, 12.54, 17.21

**Solution**

Where the number of Decimal places in two Decimals are different, they are called Unlike Decimals.

The number of Decimal places in 11.32 is 2

The number of Decimal places in 25.3 is 1

The number of Decimal places in 12.54 is 2

The number of Decimal places in 17.21 is 2

Hence, 25.3 is the Unlike Decimal amongst the given Decimals since it has only 1 Decimal place while all other numbers have 2 Decimal places.

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