1/2 - 1/9 as a fraction

Learn how to find what is 1/2 minus 1/9 in fraction form just in a few minutes. We have covered the easiest method to write 1/2 - 1/9 as a fraction and decimal.

Summary: 1/2 minus 1/9 = 7/18
Since both fractions have unequal denominators, 1/2 minus 1/9 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 1/2 and fraction 1/9 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 2 and 9. 18 is the LCM of 2 and 9. Multiplying the LCM 18 with the numerators and denominators of both fractions (1/2 x 18/18) - (1/9 x 18/18), and simplify further in order to have the common denominator. So the equivalent fraction for 1/2 is 9/18 and for 1/9 is 2/18. By simplifying this fraction subtraction 9/18 - 2/18, it becomes 7/18.

Pie Chart Representation: 1/2 - 1/9 = 7/18

CALCULATION: 1/2 - 1/9 as a fraction
1/2 - 1/9 = (?)
1/2 - 1/9 = [(1 x 9) - (1 x 2)]/(2 x 9)
= (9 - 2)/18
= 7/18
1/2 - 1/9 = 7/18
1/2 minus 1/9 as a fraction is 7/18.

where
1/2 is a proper fraction as a minuend,
1/9 is a proper fraction as a subtrahend,
7/18 is the difference between 1/2 and 1/9.

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1/2 minus 1/9 as a decimal
1/2 - 1/9 = 7/18
7/18 = 0.3889
(1/2) - (1/9) as a decimal is 0.3889

where
0.3889 is the difference between 1/2 and 1/9.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/9 from 1/2. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 1/2 minus 1/9.
1. LCM method
2. Cross multiplication method.

(1/2) - (1/9) using LCM Method:
What is 1/2 minus 1/9 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 1/9

What to be found?
(1/2) - (1/9) = ?
Find what's the difference between 1/2 and 1/9.

step 2 Compare the denominators of fractions 1/2 and 1/9 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/2 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 1/2 and 1/9:
The LCM of 2 and 9 is 18.

step 4 Write the fractions 1/2 and 1/9 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 1/2 - 1/9
= [(1 x 18)/(2 x 18)] - [(1 x 18)/(9 x 18)]

step 5 Simplify the expression to have common denominator:
= 9/18 - 2/18

step 6 Take the common values out and rewrite the above expression like the below:
= 1/18 x (9/1 - 2/1)
= 1/18 x (9 - 2)

step 7Simplify the above expression further:
= 1/18 x 7
= 7/18
1/2 - 1/9 = 7/18

Hence,
1/2 minus 1/9 as a fraction is 7/18.

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1/2 - 1/9 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 1/9

What to be found?
(1/2)-(1/9) = ?
Find what's the difference between 1/2 and 1/9.

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

step 3 Simplify and rewrite the fraction:
= (9 - 2)/18
1/2 - 1/9 = 7/18

Hence,
1/2 minus 1/9 in fraction is 7/18