What is 3/10 - 2/3?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 2/3 from 3/10. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 3/10 minus 2/3.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 3/10 minus 2/3 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
3/10 & 2/3
3/10-2/3 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 10 and 3 is 30.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(3 x 30)/(10 x 30)-(2 x 30)/(3 x 30)
=9/30-20/30
=(9 - 20)/30

step 4 Find difference between numerators and rewrite it in a single form.
=-11/30
3/10-2/3=-11/30

By using LCM method, -11/30 is the equivalent fraction by subtracting 2/3 from 3/10.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
3/10 & 2/3
3/10 - 2/3 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (3 x 3) - (2 x 10)/(10 x 3)

step 3 Simplify and rewrite the fraction
= (9 - 20)/30
3/10-2/3 = -11/30
By using cross multiplication method, -11/30 is the difference between two fractions 3/10 and 2/3.