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Multiplication of Fractional Number by a Whole Number

We will discuss here about the multiplication of fractional number by a whole number.

14 is multiplied by 4 or 4 14 = 4 of 14

This is Whole Part

Suppose this is whole (1)

This is One Fourth Part

This is the one fourth of 1 that is  14

This is 1 Part

So, this figure shows 4 of 14 or 14. (Since, 4 × 14 = 14 + 14 + 14 + 14)

Therefore, 4 × 14 = 41 × 14 = 4×11×4 = 44 = 1

Hence we conclude that, to multiply a fraction by a whole number, the numerator of the fraction is multiplied by the whole number. This becomes the numerator of the product. The denominator does not change.

The following rules are given below for the multiplication of a fraction by a whole number:

(a) If the fraction is a mixed fraction, convert it to improper fraction.

Multiplication of Fractional Number by a Whole Number



(c) Always write the answer as a mixed fraction if it is not a proper fraction/whole number.


Solved examples on multiplication of fractional number by a whole number:

1. 34 × 15

Multiplication of Fractional Number by a Whole Number



= 3×154

= 454

Multiplication of Fractional Number by a Whole Number








= 1114



2. 412 of 3

= 4×2+12 of 3

= 92 × 3

= 9×32

= 272

Multiplication of Fractional Number by a Whole Number








= 1312

Note: ‘Of‘ stands for multiplication.


3. 93 × 5

= 9×53

= 453

= 15



4. 1412 of 7

= 14×2+12 of 7

= 292 × 7

= 29×72

= 2032

Multiplication of Fractional Number by a Whole Number







= 10112



5. 627 of 4

= 6×7+27 of 4

= 447 × 4

= 44×47

= 1767

Multiplication of Fractional Number by a Whole Number








= 2517



6. 1814 × 12

= 18×4+14 × 12

= 734 × 12

= 73×124

= 8764

Multiplication of Fractional Number by a Whole Number










= 219



Multiplication is Repeated Addition.

Multiplication of Fractional Number by a Whole Number.

Multiplication of a Fraction by Fraction.

Properties of Multiplication of Fractional Numbers.

Multiplicative Inverse.

Worksheet on Multiplication on Fraction.

Division of a Fraction by a Whole Number.

Division of a Fractional Number.

Division of a Whole Number by a Fraction.

Properties of Fractional Division.

Worksheet on Division of Fractions.

Simplification of Fractions.

Worksheet on Simplification of Fractions.

Word Problems on Fraction.

Worksheet on Word Problems on Fractions.





5th Grade Numbers

5th Grade Math Problems

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