# What is 7/10 - 4/5? 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 7/10 and 4/5.

7/10 - 4/5 = -5/50 as simplified as -1/10 in fraction form

7/10 - 4/5 = -0.1 in decimal form
This calculator, formula, step by step calculation and associated information to find the difference between 7/10 & 4/5 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 7/10-4/5?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 4/5 from 7/10. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 7/10 minus 4/5.
1. LCM method
2. Cross multiplication method.

Problem & Workout - LCM Method
What is 7/10 minus 4/5 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters & values.
Input parameters & values:
7/10 & 4/5
7/10-4/5 = ?

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 & denominator
=(7 x 10)/(10 x 10)-(4 x 10)/(5 x 10)
=7/10-8/10
=(7 - 8)/10

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

By using LCM method, -1/10 is the equivalent fraction by subtracting 4/5 from 7/10.

Problem & Workout - Cross Multiplication Method
step 1 Address formula, input parameters & values.
Input parameters & values:
7/10 & 4/5
7/10 - 4/5 = ?

step 2 Cross multiply both numerator & denominator, multiply both denominators and rewrite as below
= (7 x 5) - (4 x 10)/(10 x 5)

step 3 Simplify & rewrite the fraction
= (35 - 40)/50
= -5/50
= -1/10
7/10-4/5 = -1/10
By using cross multiplication method, -1/10 is the difference between two fractions 7/10 and 4/5. 