1/3 - 2/81 as a fraction

Learn how to find what is 1/3 minus 2/81 in fraction form just in a few minutes. We have covered the easiest method to write 1/3 - 2/81 as a fraction and decimal.

Summary: 1/3 minus 2/81 = 25/81
Since both fractions have unequal denominators, 1/3 minus 2/81 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 1/3 and fraction 2/81 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 3 and 81. 81 is the LCM of 3 and 81. Multiplying the LCM 81 with the numerators and denominators of both fractions (1/3 x 81/81) - (2/81 x 81/81), and simplify further in order to have the common denominator. So the equivalent fraction for 1/3 is 27/81 and for 2/81 is 2/81. By simplifying this fraction subtraction 27/81 - 2/81, it becomes 25/81.

Pie Chart Representation: 1/3 - 2/81 = 25/81

CALCULATION: 1/3 - 2/81 as a fraction
1/3 - 2/81 = (?)
1/3 - 2/81 = [(1 x 81) - (2 x 3)]/(3 x 81)
= (81 - 6)/243
= 75/243
= (3 x 25)/(3 x 81)
= 25/81
1/3 - 2/81 = 25/81
1/3 minus 2/81 as a fraction is 25/81.

where
1/3 is a proper fraction as a minuend,
2/81 is a proper fraction as a subtrahend,
25/81 is the difference between 1/3 and 2/81.

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1/3 minus 2/81 as a decimal
1/3 - 2/81 = 25/81
25/81 = 0.3086
(1/3) - (2/81) as a decimal is 0.3086

where
0.3086 is the difference between 1/3 and 2/81.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 2/81 from 1/3. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 1/3 minus 2/81.
1. LCM method
2. Cross multiplication method.

(1/3) - (2/81) using LCM Method:
What is 1/3 minus 2/81 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/3
Fraction B: 2/81

What to be found?
(1/3) - (2/81) = ?
Find what's the difference between 1/3 and 2/81.

step 2 Compare the denominators of fractions 1/3 and 2/81 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/3 and 2/81 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 1/3 and 2/81:
The LCM of 3 and 81 is 81.

step 4 Write the fractions 1/3 and 2/81 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 1/3 - 2/81
= [(1 x 81)/(3 x 81)] - [(2 x 81)/(81 x 81)]

step 5 Simplify the expression to have common denominator:
= 27/81 - 2/81

step 6 Take the common values out and rewrite the above expression like the below:
= 1/81 x (27/1 - 2/1)
= 1/81 x (27 - 2)

step 7Simplify the above expression further:
= 1/81 x 25
= 25/81
1/3 - 2/81 = 25/81

Hence,
1/3 minus 2/81 as a fraction is 25/81.

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1/3 - 2/81 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/3
Fraction B: 2/81

What to be found?
(1/3)-(2/81) = ?
Find what's the difference between 1/3 and 2/81.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 81), find the product of numerator of Fraction B and denominator of Fraction A (2 x 3), and find the product of both denominators of Fraction A and Fraction B (3 x 81) and rewrite the equation as like the below:
= (1 x 81) - (2 x 3)/(3 x 81)

step 3 Simplify and rewrite the fraction:
= (81 - 6)/243
= 75/243
= 25/81
1/3 - 2/81 = 25/81

Hence,
1/3 minus 2/81 in fraction is 25/81