# What is 9/8 - 3/5? 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 9/8 and 3/5.

9/8 - 3/5 = 21/40 in fraction form

9/8 - 3/5 = 0.525 in decimal form
This calculator, formula, step by step calculation and associated information to find the difference between 9/8 and 3/5 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 9/8-3/5?

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 9/8. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/8 minus 3/5.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 9/8 minus 3/5 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
9/8 & 3/5
9/8-3/5 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 8 and 5 is 40.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(9 x 40)/(8 x 40)-(3 x 40)/(5 x 40)
=45/40-24/40
=(45 - 24)/40

step 4 Find difference between numerators and rewrite it in a single form.
=21/40
9/8-3/5=21/40

By using LCM method, 21/40 is the equivalent fraction by subtracting 3/5 from 9/8.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
9/8 & 3/5
9/8 - 3/5 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (9 x 5) - (3 x 8)/(8 x 5)

step 3 Simplify and rewrite the fraction
= (45 - 24)/40
9/8-3/5 = 21/40
By using cross multiplication method, 21/40 is the difference between two fractions 9/8 and 3/5. 