Inverse fraction

Introduction to Inverse fraction: 

          In mathematics, an inverse fraction or reciprocal for a number x, denoted by 1/x or x -1, is an element which when inverse by x yields the inverse identity, 1. the inverse of a fraction a/b is b/a. For the inverse fraction of a real number, divide 1 by the number. For example, the inverse fraction of 5 is one fifth (1/5 or 0.2), and the inverse fraction of 0.25 is 1 divided by 0.25, or 4.
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Inverse Fraction-example 1:

Find the inverse fraction of 5/2

Solution:

Inverse fraction is 5/2 = 2/5 

The solution of inverse fraction is 2/5

Inverse fraction-Example 2:

Find the inverse fraction of 8/4

Solution:

Inverse fraction is 8/4 = 4/8 

The solution of inverse fraction is 4/8

Inverse fraction-Example 3:

Find the inverse fraction of 4/2

Solution:

Inverse fraction is 4/2 = 2/4 

The solution of inverse fraction is 2/4

Inverse fraction-Example 4:

Find the inverse fraction of 3/2

Solution:

Inverse fraction is 3/2 = 2/3

The solution of inverse fraction is 2/3

Inverse fraction-Example 5:

Find the inverse fraction of 7/2

Solution:

Inverse fraction is 7/2 = 2/7 

The solution of inverse fraction is 2/7

Inverse fraction-Example 6:

Find the inverse fraction of 5/9

Solution:

Inverse fraction is 5/9 = 9/5 

The solution of inverse fraction is 9/5.

Inverse Fraction-example 7:

Find the inverse fraction of 5/1

Solution:

Inverse fraction is 5/1 = 1/5 

The solution of inverse fraction is 1/5

Inverse fraction-Example 8:

Find the inverse fraction of 9/2

Solution:

Inverse fraction is 9/2 = 2/9 

The solution of inverse fraction is 2/9

Inverse fraction-Example 9:

Find the inverse fraction of 11/2

Solution:

Inverse fraction is 11/2 = 2/11 

The solution of inverse fraction is 2/11

Inverse fraction-Example 10:

Find the inverse fraction of 5/12

Solution:

Inverse fraction is 5/12 = 12/5 

The solution of inverse fraction is 12/5

Inverse fraction-Example 11:

Find the inverse fraction of 5/23

Solution:

Inverse fraction is 5/23 = 23/5 

The solution of inverse fraction is 23/5

Inverse fraction-Example 12:

Find the inverse fraction of 5/21

Solution:

Inverse fraction is 5/21 = 21/5 

The solution of inverse fraction is 21/5

Inverse fraction-Example 13:

Find the inverse fraction of 15/2

Solution:

Inverse fraction is 15/2 = 2/15 

The solution of inverse fraction is 2/15

Inverse fraction-Example 14:

Find the inverse fraction of 5/17

Solution:

Inverse fraction is 5/17 = 17/5 

The solution of inverse fraction is 17/5

Inverse fraction-Example 15:

Find the inverse fraction of 13/2

Solution:

Inverse fraction is 13/2 = 2/13 

The solution of inverse fraction is 2/13.

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A word problem on percentages

Percentages are used to express how large one quantity is, relative to another quantity. The first quantity usually represents a part of, or a change in, the second quantity, which should be greater than zero. For example, an increase of $ 0.15 on a price of $ 2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. Expressed as a percentage, this is therefore a 6% increase.

Let's see a word problem on it.

Question:-

A waitress earn an average tip of 12% of the cost of the food she serves.If she serves $ 375 worth of food in one evening ,how much money in tips will she earn on average.

Answer:-

Waitress serves food worth=$375

She earns a tip=12%

     So.
           12% of $375


       12
      ----- * 375
       100

      12*375
     ---------
       375

       4500
   =  -------
        100

   =$45

 So the waitress earn a tip of $45.

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