7/8 - 18/11 as a fraction

Learn how to find what is 7/8 minus 18/11 in fraction form just in a few minutes. We have covered the easiest method to write 7/8 - 18/11 as a fraction and decimal.

Summary: 7/8 minus 18/11 = -67/88
Since both fractions have unequal denominators, 7/8 minus 18/11 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 7/8 and fraction 18/11 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 8 and 11. 88 is the LCM of 8 and 11. Multiplying the LCM 88 with the numerators and denominators of both fractions (7/8 x 88/88) - (18/11 x 88/88), and simplify further in order to have the common denominator. So the equivalent fraction for 7/8 is 77/88 and for 18/11 is 144/88. By simplifying this fraction subtraction 77/88 - 144/88, it becomes -67/88.

CALCULATION: 7/8 - 18/11 as a fraction
7/8 - 18/11 = (?)
7/8 - 18/11 = [(7 x 11) - (18 x 8)]/(8 x 11)
= (77 - 144)/88
= -67/88
7/8 - 18/11 = -67/88
7/8 minus 18/11 as a fraction is -67/88.

where
7/8 is a proper fraction as a minuend,
18/11 is a improper fraction as a subtrahend,
-67/88 is the difference between 7/8 and 18/11.

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7/8 minus 18/11 as a decimal
7/8 - 18/11 = -67/88
-67/88 = -0.7614
(7/8) - (18/11) as a decimal is -0.7614

where
-0.7614 is the difference between 7/8 and 18/11.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 18/11 from 7/8. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 7/8 minus 18/11.
1. LCM method
2. Cross multiplication method.

(7/8) - (18/11) using LCM Method:
What is 7/8 minus 18/11 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/8
Fraction B: 18/11

What to be found?
(7/8) - (18/11) = ?
Find what's the difference between 7/8 and 18/11.

step 2 Compare the denominators of fractions 7/8 and 18/11 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 7/8 and 18/11 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 18/11:
The LCM of 8 and 11 is 88.

step 4 Write the fractions 7/8 and 18/11 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 7/8 - 18/11
= [(7 x 88)/(8 x 88)] - [(18 x 88)/(11 x 88)]

step 5 Simplify the expression to have common denominator:
= 77/88 - 144/88

step 6 Take the common values out and rewrite the above expression like the below:
= 1/88 x (77/1 - 144/1)
= 1/88 x (77 - 144)

step 7Simplify the above expression further:
= 1/88 x -67
= -67/88
7/8 - 18/11 = -67/88

Hence,
7/8 minus 18/11 as a fraction is -67/88.

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7/8 - 18/11 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/8
Fraction B: 18/11

What to be found?
(7/8)-(18/11) = ?
Find what's the difference between 7/8 and 18/11.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 11), find the product of numerator of Fraction B and denominator of Fraction A (18 x 8), and find the product of both denominators of Fraction A and Fraction B (8 x 11) and rewrite the equation as like the below:
= (7 x 11) - (18 x 8)/(8 x 11)

step 3 Simplify and rewrite the fraction:
= (77 - 144)/88
7/8 - 18/11 = -67/88

Hence,
7/8 minus 18/11 in fraction is -67/88