continued fraction

 

continued fraction

                                                                                                                                           



   

Multiplication and division of fractions STD IV

Multiplication and division of fractions. gentle paced, elaborat video

http://www.mathtutor.ac.uk/arithmetic/fractionsmultiplyinganddividing/video

addition and subtraction of fraction STD III and STD IV

video tutorial on addition and subtraction of fraction.

excellent tutorial

http://www.mathtutor.ac.uk/arithmetic/fractiomsaddingandsubtracting/video

basics of fraction for STD III - video tutorial

I feel this is a very good video tutorial on fraction.

http://www.mathtutor.ac.uk/arithmetic/fractionsbasicideas/video

introduction to fractions for STD III

To find fractions between 2 fractions

Find 4 fractions which lie between 14/23 and 15/23?

Converting 14/23 into equivalent fraction we have =  _{14 x 5   =  70}

                                                                                          ^{23 x 5       115}

Converting 15/23 into equivalent fraction we have =  _{15 x 5   =   75}

                                                                                           ^{23 x 5      115}

So, the fractions are,

⁷⁰/₁₁₅, ⁷¹/₁₁₅, ⁷²/₁₁₅, ⁷³/₁₁₅, ⁷⁴/_115, ⁷⁵/₁₁₅

express recurring decimal number into fraction (2)

How to express recurring decimal number into fraction?

Let us take the example of 0.534534534…..

Let “x” = 0.534534534………..        (1)

Since, 0.534 is recurring, we will multiply by 1000. The decimal side will remain unchanged.

So, 1000x = 534.534534534……….                (2)

Subtracting (1) from (2), we have

999x = 534

Or, x = 534/999 

 Answer

recurring decimal to fraction

How to express recurring decimal number into fraction?

Let us take the example of 34.56565656565…..

Let “x” = 34.5656565656………..                     (1)

Since, 0.56 is recurring, we will multiply by 100. The decimal side will remain unchanged.

So, 100x = 3456.565656……….       (2)

Subtracting (1) from (2), we have

99x = 3422

Or, x = 3422/99 

or x   =  34 56/99 

Answer