2/5 - 18 as a fraction

Learn how to find what is 2/5 minus 18 in fraction form just in a few minutes. We have covered the easiest method to write 2/5 - 18 as a fraction and decimal.

Summary: 2/5 minus 18 = -88/5
Since both fractions have unequal denominators, 2/5 minus 18 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 2/5 and fraction 18 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 5 and 1. 5 is the LCM of 5 and 1. Multiplying the LCM 5 with the numerators and denominators of both fractions (2/5 x 5/5) - (18 x 5/5), and simplify further in order to have the common denominator. So the equivalent fraction for 2/5 is 2/5 and for 18 is 90/5. By simplifying this fraction subtraction 2/5 - 90/5, it becomes -88/5.

CALCULATION: 2/5 - 18 as a fraction
2/5 - 18 = (?)
2/5 - 18/1 = [(2 x 1) - (18 x 5)]/(5 x 1)
= (2 - 90)/5
= -88/5
2/5 - 18 = -88/5
2/5 minus 18 as a fraction is -88/5.

where
2/5 is a proper fraction as a minuend,
18 is a whole number as a subtrahend,
-88/5 is the difference between 2/5 and 18.

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2/5 minus 18 as a decimal
2/5 - 18 = -88/5
-88/5 = -17.6
(2/5) - (18) as a decimal is -17.6

where
-17.6 is the difference between 2/5 and 18.

The below workout with step by step calculation shows how to find the difference between fraction and a whole number by subtracting 18 from 2/5. use any one of the following methods to find the equivalent fraction for 2/5 minus 18.
1. LCM method
2. Cross multiplication method.

(2/5) - (18) using LCM Method:
What is 2/5 minus 18 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/5
Fraction B: 18/1

What to be found?
(2/5) - (18) = ?
Find what's the difference between 2/5 and 18.

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

step 4 Write the fractions 2/5 and 18 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 2/5 - 18
= [(2 x 5)/(5 x 5)] - [(18 x 5)/(1 x 5)]

step 5 Simplify the expression to have common denominator:
= 2/5 - 90/5

step 6 Take the common values out and rewrite the above expression like the below:
= 1/5 x (2/1 - 90/1)
= 1/5 x (2 - 90)

step 7Simplify the above expression further:
= 1/5 x -88
= -88/5
2/5 - 18 = -88/5

Hence,
2/5 minus 18 as a fraction is -88/5.

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2/5 - 18 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/5
Fraction B: 18/1

What to be found?
(2/5)-(18) = ?
Find what's the difference between 2/5 and 18.

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

step 3 Simplify and rewrite the fraction:
= (2 - 90)/5
2/5 - 18 = -88/5

Hence,
2/5 minus 18 in fraction is -88/5