What is 7/8 minus 1/9? 7/8 - 1/9 as a fraction provides the detailed information about what is the difference between 7/8 and 1/9 in fraction and decimal form, and the answer with steps to understand how it is being calculated by using different methods.

7/8-1/9 equals to
7/8 - 1/9 = 55/72
Hence, 7/8 - 1/9 is equal to 55/72.
where
7/8 is a fraction as a minuend,
1/9 is a fraction as a subtrahend,
55/72 is the difference between 7/8 and 1/9.

7/8 minus 1/9 as a decimal
7/8 - 1/9 = 55/72
55/72 = 0.7639
Hence, 7/8-1/9 can be written as 0.7639 in decimal.
where
0.7639 is the difference between 7/8 and 1/9.

For values other than 7/8 minus 1/9, use this below tool:

How-to: 7/8 - 1/9 = ?

The below workout with step by step calculation for subtracting 7/8 from 1/9 shows how to find what is the difference between 7/8 and 1/9. The difference of fractions 7/8 minus 1/9 can be obtained by using anyone of the two methods below:
1. LCM method,
2. Cross multiplication method.

Problem and Workout - LCM Method:
What is 7/8 minus 1/9 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/8
Fraction B: 1/9

What to be found?
7/8-1/9 = ?
Find what's the difference between 7/8 and 1/9.

step 2 Compare the denominators of fractions 7/8 and 1/9 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 7/8 and 1/9 are not equal, it is said to be unlike fractions subtraction.

step 3For unlike fractions subtraction, find the LCM (least common multiple) of both denominators of fractions 7/8 and 1/9:
The LCM of 8 and 9 is 72.

step 4 Write the fractions 7/8 and 1/9 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=7/8-1/9
=(7 x 72)/(8 x 72)-(1 x 72)/(9 x 72)

step 5 Simplify the expression to have common denominator:
=63/72-8/72

step 6 Take the common values out and rewrite the above expression like the below:
=1/72 x (63/1-8/1)
=1/72 x (63 - 8)

step 7Simplify the above expression further:
=1/72 x 55
=55/72
7/8-1/9=55/72

Hence,
7/8 minus 1/9 equals to 55/72 in fraction.

Problem and Workout - Cross Multiplication Method
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/8
Fraction B: 1/9

What to be found?
7/8-1/9 = ?
Find what's the difference between 7/8 and 1/9.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 9), find the product of numerator of Fraction B and denominator of Fraction A (1 x 8), and find the product of both denominators of Fraction A and Fraction B (8 x 9) and rewrite the equation as like the below:
= (7 x 9) - (1 x 8)/(8 x 9)

step 3 Simplify and rewrite the fraction:
= (63 - 8)/72
7/8-1/9 = 55/72
Hence,
7/8 minus 1/9 = 55/72 