# What is 9/10 - 1/5? 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 9/10 and 1/5.

9/10 - 1/5 = 35/50 as simplified as 7/10 in fraction form

9/10 - 1/5 = 0.7 in decimal form
This calculator, formula, step by step calculation and associated information to find the difference between 9/10 and 1/5 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 9/10-1/5?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/5 from 9/10. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/10 minus 1/5.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 9/10 minus 1/5 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
9/10 & 1/5
9/10-1/5 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 10 and 5 is 10.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(9 x 10)/(10 x 10)-(1 x 10)/(5 x 10)
=9/10-2/10
=(9 - 2)/10

step 4 Find difference between numerators and rewrite it in a single form.
=7/10
9/10-1/5=7/10

By using LCM method, 7/10 is the equivalent fraction by subtracting 1/5 from 9/10.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
9/10 & 1/5
9/10 - 1/5 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (9 x 5) - (1 x 10)/(10 x 5)

step 3 Simplify and rewrite the fraction
= (45 - 10)/50
= 35/50
= 7/10
9/10-1/5 = 7/10
By using cross multiplication method, 7/10 is the difference between two fractions 9/10 and 1/5. 