What is 9/11 - 8/10?

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 8/10 from 9/11. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/11 minus 8/10.
1. LCM method
2. Cross multiplication method.

Problem and Workout - LCM Method
What is 9/11 minus 8/10 as a fraction by subtraction using LCM method?

step 1 Address formula, input parameters and values.
Input parameters and values:
9/11 & 8/10
9/11-8/10 = ?

step 2 For unequal denominators, find the LCM (least common multiple) for both denominators
The LCM for 11 and 10 is 110.

step 3 To have the common denominator, multiply the LCM with both numerator and denominator
=(9 x 110)/(11 x 110)-(8 x 110)/(10 x 110)
=90/110-88/110
=(90 - 88)/110

step 4 Find difference between numerators and rewrite it in a single form.
= 2/110
=1/55
9/11-8/10=1/55

By using LCM method, 1/55 is the equivalent fraction by subtracting 8/10 from 9/11.

Problem and Workout - Cross Multiplication Method
step 1 Address formula and input values.
Input values:
9/11 & 8/10
9/11 - 8/10 = ?

step 2 Cross multiply both numerator and denominator, multiply both denominators and rewrite as below
= (9 x 10) - (8 x 11)/(11 x 10)

step 3 Simplify and rewrite the fraction
= (90 - 88)/110
= 2/110
= 1/55
9/11-8/10 = 1/55
By using cross multiplication method, 1/55 is the difference between two fractions 9/11 and 8/10.