13/6 - 18/13 as a fraction

Learn how to find what is 13/6 minus 18/13 in fraction form just in a few minutes. We have covered the easiest method to write 13/6 - 18/13 as a fraction and decimal.

Summary: 13/6 minus 18/13 = 61/78
Since both fractions have unequal denominators, 13/6 minus 18/13 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 13/6 and fraction 18/13 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 6 and 13. 78 is the LCM of 6 and 13. Multiplying the LCM 78 with the numerators and denominators of both fractions (13/6 x 78/78) - (18/13 x 78/78), and simplify further in order to have the common denominator. So the equivalent fraction for 13/6 is 169/78 and for 18/13 is 108/78. By simplifying this fraction subtraction 169/78 - 108/78, it becomes 61/78.

Pie Chart Representation: 13/6 - 18/13 = 61/78

CALCULATION: 13/6 - 18/13 as a fraction
13/6 - 18/13 = (?)
13/6 - 18/13 = [(13 x 13) - (18 x 6)]/(6 x 13)
= (169 - 108)/78
= 61/78
13/6 - 18/13 = 61/78
13/6 minus 18/13 as a fraction is 61/78.

where
13/6 is a improper fraction as a minuend,
18/13 is a improper fraction as a subtrahend,
61/78 is the difference between 13/6 and 18/13.

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13/6 minus 18/13 as a decimal
13/6 - 18/13 = 61/78
61/78 = 0.7821
(13/6) - (18/13) as a decimal is 0.7821

where
0.7821 is the difference between 13/6 and 18/13.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 18/13 from 13/6. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 13/6 minus 18/13.
1. LCM method
2. Cross multiplication method.

(13/6) - (18/13) using LCM Method:
What is 13/6 minus 18/13 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 13/6
Fraction B: 18/13

What to be found?
(13/6) - (18/13) = ?
Find what's the difference between 13/6 and 18/13.

step 2 Compare the denominators of fractions 13/6 and 18/13 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 13/6 and 18/13 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 13/6 and 18/13:
The LCM of 6 and 13 is 78.

step 4 Write the fractions 13/6 and 18/13 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 13/6 - 18/13
= [(13 x 78)/(6 x 78)] - [(18 x 78)/(13 x 78)]

step 5 Simplify the expression to have common denominator:
= 169/78 - 108/78

step 6 Take the common values out and rewrite the above expression like the below:
= 1/78 x (169/1 - 108/1)
= 1/78 x (169 - 108)

step 7Simplify the above expression further:
= 1/78 x 61
= 61/78
13/6 - 18/13 = 61/78

Hence,
13/6 minus 18/13 as a fraction is 61/78.

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13/6 - 18/13 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 13/6
Fraction B: 18/13

What to be found?
(13/6)-(18/13) = ?
Find what's the difference between 13/6 and 18/13.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (13 x 13), find the product of numerator of Fraction B and denominator of Fraction A (18 x 6), and find the product of both denominators of Fraction A and Fraction B (6 x 13) and rewrite the equation as like the below:
= (13 x 13) - (18 x 6)/(6 x 13)

step 3 Simplify and rewrite the fraction:
= (169 - 108)/78
13/6 - 18/13 = 61/78

Hence,
13/6 minus 18/13 in fraction is 61/78