# What is 5/9 + 5/11? getcalc.com's two fractions addition calculator is an online basic math function tool to find what's the equivalent fraction for sum of two fractional numbers with different, unequal or unlike denominators 5/9 and 5/11.

5/9 + 5/11 = 100/99 in fraction form

5/9 + 5/11 = 1.0101 in decimal form
This calculator, formula, step by step calculation and associated information for adding 5/9 and 5/11 may help students, teachers, parents or professionals to learn, teach, practice or verify such two fractions addition calculations efficiently.

## How to Find Equivalent Fraction for 5/9+5/11?

The below workout with step by step calculation shows how to find the equivalent fraction between 5/9 and 5/11 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 5/9 plus 5/11 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 5/9 plus 5/11 as a fraction by addition using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
5/9 & 5/11
5/9+5/11 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 9 and 11 is 99.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(5 x 99)/(9 x 99)+(5 x 99)/(11 x 99)
=55/99+45/99
=(55 + 45)/99

step 4 Add both numerator and rewrite it in a single form.
=100/99
5/9+5/11=100/99

By using LCM method, 100/99 is the equivalent fraction by adding 5/9 and 5/11.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
5/9 & 5/11
5/9 + 5/11 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (5 x 11) + (5 x 9)/(9 x 11)

step 3 Simplify and rewrite the fraction
= (55 + 45)/99
5/9+5/11 = 100/99
By using cross multiplication method, 100/99 is the addition between two fractions 5/9 and 5/11. 