# What is 1/2 + 1/5?

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 1/2 and 1/5.

1/2 + 1/5 = 7/10 in fraction form

1/2 + 1/5 = 0.7 in decimal form

This calculator, formula, step by step calculation and associated information for adding 1/2 and 1/5 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 1/2+1/5?

The below workout with step by step calculation shows how to find the equivalent fraction between 1/2 and 1/5 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 1/2 plus 1/5 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 1/2 plus 1/5 as a fraction by addition using LCM method?

step 1 Address *formula*, input parameters and values.

Input parameters and values:

1/2 & 1/5

1/2+1/5 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators

The LCM for 2 and 5 is 10.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator

=(1 x 10)/(2 x 10)+(1 x 10)/(5 x 10)

=5/10+2/10

=(5 + 2)/10

step 4 Add both numerator and rewrite it in a single form.

=7/10

1/2+1/5=7/10

By using LCM method, **7/10** is the equivalent fraction by adding 1/2 and 1/5.

__Problem and Workout - Cross Multiplication Method__

step 1 Address formula and input values.

Input values:

1/2 & 1/5

1/2 + 1/5 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below

= (1 x 5) + (1 x 2)/(2 x 5)

step 3 Simplify and rewrite the fraction

= (5 + 2)/10

1/2+1/5 = 7/10

By using cross multiplication method, **7/10** is the addition between two fractions 1/2 and 1/5.