Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Oct 07, 2023


Addition of Fractions Calculator tool finds the fractions addition between the fractions 81/15 and 69/11 i.e 642/55 in a simple manner.




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How to Add Fractions 81/15 and 69/11?

The given fractions are 81/15 and 69/11

Firstly the L.C.M should be done for the denominators of the two fractions 81/15 and 69/11

81/15+69/11

The LCM of 15 and 11 (denominators of the fractions) is 165

Given numbers has no common factors except 1. So, there LCM is their product i.e 165


= 81 x 11 + 69 x 15/165

= 891 + 1035/165

= 1926/165

= 642/55

Result: 642/55

FAQ’s on Adding Fractions 81/15 and 69/11

1. What is the addition of 81/15 and 69/11?

The addition of fractions 81/15 and 69/11 is 642/55.

2. How to add the sum of fractions 81/15 and 69/11?

You can add fractions 81/15 and 69/11 by finding the L.C.M of 15 and 11 i.e. 165. After that multiply the numerator and denominator of every fraction by the number of times each fraction denominator goes into the L.C.M. Finally add the numerators of the fraction.

3. How do you add fractions 81/15 and 69/11 on a calculator?

To add fractions on a calculator, you need to give 81/15 and 69/11 as inputs and press the calculate button. The tool will display the answer 642/55 as an answer in a short time.