18/5 - 1/13 as a fraction

Learn how to find what is 18/5 minus 1/13 in fraction form just in a few minutes. We have covered the easiest method to write 18/5 - 1/13 as a fraction and decimal.

Summary: 18/5 minus 1/13 = 229/65
Since both fractions have unequal denominators, 18/5 minus 1/13 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 18/5 and fraction 1/13 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 5 and 13. 65 is the LCM of 5 and 13. Multiplying the LCM 65 with the numerators and denominators of both fractions (18/5 x 65/65) - (1/13 x 65/65), and simplify further in order to have the common denominator. So the equivalent fraction for 18/5 is 234/65 and for 1/13 is 5/65. By simplifying this fraction subtraction 234/65 - 5/65, it becomes 229/65.

CALCULATION: 18/5 - 1/13 as a fraction
18/5 - 1/13 = (?)
18/5 - 1/13 = [(18 x 13) - (1 x 5)]/(5 x 13)
= (234 - 5)/65
= 229/65
18/5 - 1/13 = 229/65
18/5 minus 1/13 as a fraction is 229/65.

where
18/5 is a improper fraction as a minuend,
1/13 is a proper fraction as a subtrahend,
229/65 is the difference between 18/5 and 1/13.

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18/5 minus 1/13 as a decimal
18/5 - 1/13 = 229/65
229/65 = 3.5231
(18/5) - (1/13) as a decimal is 3.5231

where
3.5231 is the difference between 18/5 and 1/13.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/13 from 18/5. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 18/5 minus 1/13.
1. LCM method
2. Cross multiplication method.

(18/5) - (1/13) using LCM Method:
What is 18/5 minus 1/13 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 18/5
Fraction B: 1/13

What to be found?
(18/5) - (1/13) = ?
Find what's the difference between 18/5 and 1/13.

step 2 Compare the denominators of fractions 18/5 and 1/13 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 18/5 and 1/13 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 18/5 and 1/13:
The LCM of 5 and 13 is 65.

step 4 Write the fractions 18/5 and 1/13 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 18/5 - 1/13
= [(18 x 65)/(5 x 65)] - [(1 x 65)/(13 x 65)]

step 5 Simplify the expression to have common denominator:
= 234/65 - 5/65

step 6 Take the common values out and rewrite the above expression like the below:
= 1/65 x (234/1 - 5/1)
= 1/65 x (234 - 5)

step 7Simplify the above expression further:
= 1/65 x 229
= 229/65
18/5 - 1/13 = 229/65

Hence,
18/5 minus 1/13 as a fraction is 229/65.

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18/5 - 1/13 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 18/5
Fraction B: 1/13

What to be found?
(18/5)-(1/13) = ?
Find what's the difference between 18/5 and 1/13.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (18 x 13), find the product of numerator of Fraction B and denominator of Fraction A (1 x 5), and find the product of both denominators of Fraction A and Fraction B (5 x 13) and rewrite the equation as like the below:
= (18 x 13) - (1 x 5)/(5 x 13)

step 3 Simplify and rewrite the fraction:
= (234 - 5)/65
18/5 - 1/13 = 229/65

Hence,
18/5 minus 1/13 in fraction is 229/65