5/4 - 7/18 as a fraction

Learn how to find what is 5/4 minus 7/18 in fraction form just in a few minutes. We have covered the easiest method to write 5/4 - 7/18 as a fraction and decimal.

Summary: 5/4 minus 7/18 = 31/36
Since both fractions have unequal denominators, 5/4 minus 7/18 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 5/4 and fraction 7/18 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 4 and 18. 36 is the LCM of 4 and 18. Multiplying the LCM 36 with the numerators and denominators of both fractions (5/4 x 36/36) - (7/18 x 36/36), and simplify further in order to have the common denominator. So the equivalent fraction for 5/4 is 45/36 and for 7/18 is 14/36. By simplifying this fraction subtraction 45/36 - 14/36, it becomes 31/36.

Pie Chart Representation: 5/4 - 7/18 = 31/36

CALCULATION: 5/4 - 7/18 as a fraction
5/4 - 7/18 = (?)
5/4 - 7/18 = [(5 x 18) - (7 x 4)]/(4 x 18)
= (90 - 28)/72
= 62/72
= (2 x 31)/(2 x 36)
= 31/36
5/4 - 7/18 = 31/36
5/4 minus 7/18 as a fraction is 31/36.

where
5/4 is a improper fraction as a minuend,
7/18 is a proper fraction as a subtrahend,
31/36 is the difference between 5/4 and 7/18.

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5/4 minus 7/18 as a decimal
5/4 - 7/18 = 31/36
31/36 = 0.8611
(5/4) - (7/18) as a decimal is 0.8611

where
0.8611 is the difference between 5/4 and 7/18.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 7/18 from 5/4. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 5/4 minus 7/18.
1. LCM method
2. Cross multiplication method.

(5/4) - (7/18) using LCM Method:
What is 5/4 minus 7/18 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 5/4
Fraction B: 7/18

What to be found?
(5/4) - (7/18) = ?
Find what's the difference between 5/4 and 7/18.

step 2 Compare the denominators of fractions 5/4 and 7/18 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 5/4 and 7/18 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 5/4 and 7/18:
The LCM of 4 and 18 is 36.

step 4 Write the fractions 5/4 and 7/18 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 5/4 - 7/18
= [(5 x 36)/(4 x 36)] - [(7 x 36)/(18 x 36)]

step 5 Simplify the expression to have common denominator:
= 45/36 - 14/36

step 6 Take the common values out and rewrite the above expression like the below:
= 1/36 x (45/1 - 14/1)
= 1/36 x (45 - 14)

step 7Simplify the above expression further:
= 1/36 x 31
= 31/36
5/4 - 7/18 = 31/36

Hence,
5/4 minus 7/18 as a fraction is 31/36.

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5/4 - 7/18 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 5/4
Fraction B: 7/18

What to be found?
(5/4)-(7/18) = ?
Find what's the difference between 5/4 and 7/18.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (5 x 18), find the product of numerator of Fraction B and denominator of Fraction A (7 x 4), and find the product of both denominators of Fraction A and Fraction B (4 x 18) and rewrite the equation as like the below:
= (5 x 18) - (7 x 4)/(4 x 18)

step 3 Simplify and rewrite the fraction:
= (90 - 28)/72
= 62/72
= 31/36
5/4 - 7/18 = 31/36

Hence,
5/4 minus 7/18 in fraction is 31/36