# What is 9/10 - 5/7? 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 5/7.

9/10 - 5/7 = 13/70 in fraction form

9/10 - 5/7 = 0.1857 in decimal form
This calculator, formula, step by step calculation and associated information to find the difference between 9/10 and 5/7 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 9/10-5/7?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 5/7 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 5/7.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 9/10 minus 5/7 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
9/10 & 5/7
9/10-5/7 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 10 and 7 is 70.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(9 x 70)/(10 x 70)-(5 x 70)/(7 x 70)
=63/70-50/70
=(63 - 50)/70

step 4 Find difference between numerators and rewrite it in a single form.
=13/70
9/10-5/7=13/70

By using LCM method, 13/70 is the equivalent fraction by subtracting 5/7 from 9/10.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
9/10 & 5/7
9/10 - 5/7 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (9 x 7) - (5 x 10)/(10 x 7)

step 3 Simplify and rewrite the fraction
= (63 - 50)/70
9/10-5/7 = 13/70
By using cross multiplication method, 13/70 is the difference between two fractions 9/10 and 5/7. 