Discovering a Fraction of a Complete Quantity

Learn how to discover a fraction of a complete quantity?

For locating a fraction of a complete quantity, we multiply the
numerator of the fraction by the given quantity after which divide the product by
the denominator of the fraction.

Solved examples for locating a fraction of a complete quantity:

(i) Discover 1/3 of 21.

To search out 1/3 of 21, we multiply the numerator 1 by the given entire quantity 21 after which divide the product 21 by the denominator 3.

1/3 × 21 = 1 × 21/3 = 21/3 = 7

So, 1/3 of 21 = 7.

(ii) Discover 2/5 of 15.

To search out 2/5 of 15, we multiply the numerator 2 by the given
entire quantity 15 after which divide the product 30 by the denominator 5.

2/5 × 15 = 2 × 15/5 = 30/5 = 6

So, 2/5 of 15 = 6.

 

(iii) Discover 3/8 of 48.

To search out 3/8 of 48, we multiply the numerator 3 by the given
entire quantity 48 after which divide the product 144 by the denominator 8.

3/8 × 48 = 3 × 48/8 = 144/8 = 18

So, 3/8 of 48 = 18.

Discovering Fractions:

To Discover Half –

Ram has 20 biscuits. He desires to offer half of them to his sister. What number of ought to he give her?

Ram has to offer 1 of two equal elements to his sister. So, to place the gathering in two equal elements, divide it by two i.e. 20 ÷ 2 = 10.

Ram will give one half (10 biscuits) to his sister.

To Discover One Third –

One third is 1 a part of 3 equal elements.

To place a group in three equal elements, divide it by three.

One a part of it’s (frac{1}{3}).

To Discover One Fourth –

One fourth is I a part of 4 equal elements.

To place a group in 4 equal elements, divide it by 4.

One a part of its is (frac{1}{4}).

Story Sums on Discovering a Fraction of a Complete Quantity:

1. There are 10 youngsters in a classroom. If half of them had been boys then what number of ladies had been there?

Reply: 5

2. Neetu had 8 toffees. She ate half of them. How is she left with now?

Reply: 4

3. Amit had 6 balloons. One third of the balloons burst. What number of balloons are left?

Reply: 4

4. Sita had 24 biscuits. She gave one fourth to her mom. What number of biscuits had been left?

Reply: 18

5. 10 associates shared 5 chilly drinks. What fraction of chilly drink did every pal get?

Reply: (frac{5}{10}) or (frac{1}{2})

6. Neeta purchased 5 goodies. She eats 3 of them. What fraction of the goodies did she eat?

Reply: (frac{3}{5})

7. There have been 9 flower pots in Aman’s backyard. 4 pots fell down. What fraction of pots are left in his backyard. 

Reply: (frac{5}{9})

Associated Idea

● Fraction
of a Complete Numbers

● Illustration
of a Fraction

● Equal
Fractions

● Properties
of Equal Fractions

● Like and
In contrast to Fractions

● Comparability
of Like Fractions

● Comparability
of Fractions having the identical Numerator

● Sorts of
Fractions

● Altering Fractions

● Conversion
of Fractions into Fractions having Similar Denominator

● Conversion
of a Fraction into its Smallest and Easiest Kind

● Addition
of Fractions having the Similar Denominator

● Subtraction
of Fractions having the Similar Denominator

● Addition
and Subtraction of Fractions on the Fraction Quantity Line

4th Grade Math Actions

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