4/1 - 4/8 as a fraction

Learn how to find what is 4/1 minus 4/8 in fraction form just in a few minutes. We have covered the easiest method to write 4/1 - 4/8 as a fraction and decimal.

Summary: 4/1 minus 4/8 = 7/2
Since both fractions have unequal denominators, 4/1 minus 4/8 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 4/1 and fraction 4/8 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 1 and 8. 8 is the LCM of 1 and 8. Multiplying the LCM 8 with the numerators and denominators of both fractions (4/1 x 8/8) - (4/8 x 8/8), and simplify further in order to have the common denominator. So the equivalent fraction for 4/1 is 32/8 and for 4/8 is 4/8. By simplifying this fraction subtraction 32/8 - 4/8, it becomes 28/8.

CALCULATION: 4/1 - 4/8 as a fraction
4/1 - 4/8 = (?)
4/1 - 4/8 = [(4 x 8) - (4 x 1)]/(1 x 8)
= (32 - 4)/8
= 28/8
= (4 x 7)/(4 x 2)
= 7/2
4/1 - 4/8 = 7/2
4/1 minus 4/8 as a fraction is 7/2.

where
4/1 is a improper fraction as a minuend,
4/8 is a proper fraction as a subtrahend,
7/2 is the difference between 4/1 and 4/8.

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4/1 minus 4/8 as a decimal
4/1 - 4/8 = 7/2
7/2 = 3.5
(4/1) - (4/8) as a decimal is 3.5

where
3.5 is the difference between 4/1 and 4/8.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 4/8 from 4/1. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 4/1 minus 4/8.
1. LCM method
2. Cross multiplication method.

(4/1) - (4/8) using LCM Method:
What is 4/1 minus 4/8 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 4/1
Fraction B: 4/8

What to be found?
(4/1) - (4/8) = ?
Find what's the difference between 4/1 and 4/8.

step 2 Compare the denominators of fractions 4/1 and 4/8 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 4/1 and 4/8 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 4/1 and 4/8:
The LCM of 1 and 8 is 8.

step 4 Write the fractions 4/1 and 4/8 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 4/1 - 4/8
= [(4 x 8)/(1 x 8)] - [(4 x 8)/(8 x 8)]

step 5 Simplify the expression to have common denominator:
= 32/8 - 4/8

step 6 Take the common values out and rewrite the above expression like the below:
= 1/8 x (32/1 - 4/1)
= 1/8 x (32 - 4)

step 7Simplify the above expression further:
= 1/8 x 28
= 28/8
= 7/2
4/1 - 4/8 = 7/2

Hence,
4/1 minus 4/8 as a fraction is 7/2.

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4/1 - 4/8 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 4/1
Fraction B: 4/8

What to be found?
(4/1)-(4/8) = ?
Find what's the difference between 4/1 and 4/8.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (4 x 8), find the product of numerator of Fraction B and denominator of Fraction A (4 x 1), and find the product of both denominators of Fraction A and Fraction B (1 x 8) and rewrite the equation as like the below:
= (4 x 8) - (4 x 1)/(1 x 8)

step 3 Simplify and rewrite the fraction:
= (32 - 4)/8
= 28/8
= 7/2
4/1 - 4/8 = 7/2

Hence,
4/1 minus 4/8 in fraction is 7/2