# What is 1/3 - 2/5? getcalc.com's two fractions subtraction calculator is an online basic math function tool to find what's the equivalent fraction for difference between two fractional numbers with different, unequal or unlike denominators 1/3 and 2/5.

1/3 - 2/5 = -1/15 in fraction form

1/3 - 2/5 = -0.0667 in decimal form
This calculator, formula, step by step calculation and associated information to find the difference between 1/3 and 2/5 may help students, teachers, parents or professionals to learn, teach, practice or verify such two fractions subtraction calculations efficiently.

## How to Find Equivalent Fraction for 1/3-2/5?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 2/5 from 1/3. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 1/3 minus 2/5.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 1/3 minus 2/5 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
1/3 & 2/5
1/3-2/5 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 3 and 5 is 15.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(1 x 15)/(3 x 15)-(2 x 15)/(5 x 15)
=5/15-6/15
=(5 - 6)/15

step 4 Find difference between numerators and rewrite it in a single form.
=-1/15
1/3-2/5=-1/15

By using LCM method, -1/15 is the equivalent fraction by subtracting 2/5 from 1/3.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
1/3 & 2/5
1/3 - 2/5 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (1 x 5) - (2 x 3)/(3 x 5)

step 3 Simplify and rewrite the fraction
= (5 - 6)/15
1/3-2/5 = -1/15
By using cross multiplication method, -1/15 is the difference between two fractions 1/3 and 2/5. 