# What is 4/9 + 1/3? 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 4/9 and 1/3.

4/9 + 1/3 = 7/9 in fraction form

4/9 + 1/3 = 0.7778 in decimal form
This calculator, formula, step by step calculation and associated information for adding 4/9 & 1/3 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 4/9+1/3?

The below workout with step by step calculation shows how to find the equivalent fraction between 4/9 and 1/3 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 4/9 plus 1/3 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

Problem & Workout - LCM Method
What is 4/9 plus 1/3 as a fraction by addition using LCM method?

step 1 Address formula, input parameters & values.
Input parameters & values:
4/9 & 1/3
4/9+1/3 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 9 and 3 is 9.

step 3 To have the common denominator, multiply the LCM with both numerator & denominator
=(4 x 9)/(9 x 9)+(1 x 9)/(3 x 9)
=4/9+3/9
=(4 + 3)/9

step 4 Add both numerator and rewrite it in a single form.
=7/9
4/9+1/3=7/9

By using LCM method, 7/9 is the equivalent fraction by adding 4/9 and 1/3.

Problem & Workout - Cross Multiplication Method
step 1 Address formula, input parameters & values.
Input parameters & values:
4/9 & 1/3
4/9 + 1/3 = ?

step 2 Cross multiply both numerator & denominator, multiply both denominators and rewrite as below
= (4 x 3) + (1 x 9)/(9 x 3)

step 3 Simplify & rewrite the fraction
= (12 + 9)/27
= 21/27
= 7/9
4/9+1/3 = 7/9
By using cross multiplication method, 7/9 is the addition between two fractions 4/9 and 1/3. 