# 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.