# What is 7/9 + 7/11? 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 7/9 and 7/11.

7/9 + 7/11 = 140/99 in fraction form

7/9 + 7/11 = 1.4141 in decimal form
This calculator, formula, step by step calculation and associated information for adding 7/9 and 7/11 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 7/9+7/11?

The below workout with step by step calculation shows how to find the equivalent fraction between 7/9 and 7/11 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 7/9 plus 7/11 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 7/9 plus 7/11 as a fraction by addition using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
7/9 & 7/11
7/9+7/11 = ?

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
=(7 x 99)/(9 x 99)+(7 x 99)/(11 x 99)
=77/99+63/99
=(77 + 63)/99

step 4 Add both numerator and rewrite it in a single form.
=140/99
7/9+7/11=140/99

By using LCM method, 140/99 is the equivalent fraction by adding 7/9 and 7/11.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
7/9 & 7/11
7/9 + 7/11 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (7 x 11) + (7 x 9)/(9 x 11)

step 3 Simplify and rewrite the fraction
= (77 + 63)/99
7/9+7/11 = 140/99
By using cross multiplication method, 140/99 is the addition between two fractions 7/9 and 7/11. 