What is 3/4 - 3/5?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 3/5 from 3/4. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 3/4 minus 3/5.
1. LCM method
2. Cross multiplication method.

Problem & Workout - LCM Method
What is 3/4 minus 3/5 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters & values.
Input parameters & values:
3/4 & 3/5
3/4-3/5 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 4 and 5 is 20.

step 3 To have the common denominator, multiply the LCM with both numerator & denominator
=(3 x 20)/(4 x 20)-(3 x 20)/(5 x 20)
=15/20-12/20
=(15 - 12)/20

step 4 Find difference between numerators and rewrite it in a single form.
=3/20
3/4-3/5=3/20

By using LCM method, 3/20 is the equivalent fraction by subtracting 3/5 from 3/4.

Problem & Workout - Cross Multiplication Method
step 1 Address formula, input parameters & values.
Input parameters & values:
3/4 & 3/5
3/4 - 3/5 = ?

step 2 Cross multiply both numerator & denominator, multiply both denominators and rewrite as below
= (3 x 5) - (3 x 4)/(4 x 5)

step 3 Simplify & rewrite the fraction
= (15 - 12)/20
3/4-3/5 = 3/20
By using cross multiplication method, 3/20 is the difference between two fractions 3/4 and 3/5.