9/4 - 9/2 as a fraction

Learn how to find what is 9/4 minus 9/2 in fraction form just in a few minutes. We have covered the easiest method to write 9/4 - 9/2 as a fraction and decimal.

Summary: 9/4 minus 9/2 = -9/4
Since both fractions have unequal denominators, 9/4 minus 9/2 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 9/4 and fraction 9/2 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 4 and 2. 4 is the LCM of 4 and 2. Multiplying the LCM 4 with the numerators and denominators of both fractions (9/4 x 4/4) - (9/2 x 4/4), and simplify further in order to have the common denominator. So the equivalent fraction for 9/4 is 9/4 and for 9/2 is 18/4. By simplifying this fraction subtraction 9/4 - 18/4, it becomes -9/4.

CALCULATION: 9/4 - 9/2 as a fraction
9/4 - 9/2 = (?)
9/4 - 9/2 = [(9 x 2) - (9 x 4)]/(4 x 2)
= (18 - 36)/8
= -18/8
= (2 x -9)/(2 x 4)
= -9/4
9/4 - 9/2 = -9/4
9/4 minus 9/2 as a fraction is -9/4.

where
9/4 is a improper fraction as a minuend,
9/2 is a improper fraction as a subtrahend,
-9/4 is the difference between 9/4 and 9/2.

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9/4 minus 9/2 as a decimal
9/4 - 9/2 = -9/4
-9/4 = -2.25
(9/4) - (9/2) as a decimal is -2.25

where
-2.25 is the difference between 9/4 and 9/2.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 9/2 from 9/4. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/4 minus 9/2.
1. LCM method
2. Cross multiplication method.

(9/4) - (9/2) using LCM Method:
What is 9/4 minus 9/2 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/4
Fraction B: 9/2

What to be found?
(9/4) - (9/2) = ?
Find what's the difference between 9/4 and 9/2.

step 2 Compare the denominators of fractions 9/4 and 9/2 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 9/4 and 9/2 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 9/4 and 9/2:
The LCM of 4 and 2 is 4.

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

step 5 Simplify the expression to have common denominator:
= 9/4 - 18/4

step 6 Take the common values out and rewrite the above expression like the below:
= 1/4 x (9/1 - 18/1)
= 1/4 x (9 - 18)

step 7Simplify the above expression further:
= 1/4 x -9
= -9/4
9/4 - 9/2 = -9/4

Hence,
9/4 minus 9/2 as a fraction is -9/4.

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9/4 - 9/2 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/4
Fraction B: 9/2

What to be found?
(9/4)-(9/2) = ?
Find what's the difference between 9/4 and 9/2.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (9 x 2), find the product of numerator of Fraction B and denominator of Fraction A (9 x 4), and find the product of both denominators of Fraction A and Fraction B (4 x 2) and rewrite the equation as like the below:
= (9 x 2) - (9 x 4)/(4 x 2)

step 3 Simplify and rewrite the fraction:
= (18 - 36)/8
= -18/8
= -9/4
9/4 - 9/2 = -9/4

Hence,
9/4 minus 9/2 in fraction is -9/4