Page 60 - SM Class 5 Inner.cdr

5. Give the place value of all digit in each of the following.

a. 75.76 b. 376.1 c. 432.25

d. 532.5 e. 432.57 f. 325.325
Like and unlike Decimals

Decimals having the same number of decimal places are called like decimals, i.e.,
decimals having the same number of digits on the right of the decimal point are
known as Like Decimals. Otherwise, decimals not having the same number of

digits on the right of the decimal point are Unlike Decimals.

Examples of like and unlike decimals

5.45, 17.04, 272.89, etc. are like dec i mals as all these dec i mal num bers are writ ten
up to 2 places of dec i mal.

7.5, 23.16, 31.054, etc. are un like dec i mals. As in 7.5 has one dec imal place, in
23.16 has two dec i mal places and in 31.054 has three dec i mal places.

Converting Unlike Decimals to Like Decimals

If we put any number of annexing zeros on the right side of the extreme right digit
of the decimal part of a number does not alter the value of the number. So, unlike
decimals can always be converted into like decimals by annexing required number
of zeros on the right side of the extreme right digit in the decimal part.

For example :

5.3, 17.45, 38.105 are unlike decimals. These decimals can be re-written as 5.300,
17.450, 38.105 so now, these are like decimals.

Converting Fraction into Decimal

In converting fractions to decimals, we know that decimals are fractions with
denominators 10, 100, 1000 etc. In order to convert other fractions into decimals,

we follow the following steps :

Step 1 : Convert the frac tion into an equiv a lent frac tion with de nom i na tor 10 or
100 or 1000 if it is not so.

Step 2 : Take the given fraction’s nu mer a tor. Then mark the dec i mal point af ter
one place or two places or three places from right to wards left if the given
frac tion's de nom i na tor is 10 or 100 or 1000 re spec tively.

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