The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/3 from 4/8. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 4/8 minus 1/3.
1. LCM method
2. Cross multiplication method.
4/8-1/3 using LCM Method:
What is 4/8 minus 1/3 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 4/8
Fraction B: 1/3
What to be found?
4/8-1/3 = ?
Find what's the difference between 4/8 and 1/3.
step 2 Compare the denominators of fractions 4/8 and 1/3 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 4/8 and 1/3 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 4/8 and 1/3:
The LCM of 8 and 3 is 24.
step 4 Write the fractions 4/8 and 1/3 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=4/8-1/3
=(4 x 24)/(8 x 24)-(1 x 24)/(3 x 24)
step 5 Simplify the expression to have common denominator:
=12/24-8/24
step 6 Take the common values out and rewrite the above expression like the below:
=1/24 x (12/1-8/1)
=1/24 x (12 - 8)
step 7Simplify the above expression further:
=1/24 x 4
= 4/24
=1/6
4/8-1/3=1/6
Hence,
4/8 minus 1/3 equals to 1/6 in fraction.
4/8-1/3 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 4/8
Fraction B: 1/3
What to be found?
4/8-1/3 = ?
Find what's the difference between 4/8 and 1/3.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (4 x 3), find the product of numerator of Fraction B and denominator of Fraction A (1 x 8), and find the product of both denominators of Fraction A and Fraction B (8 x 3) and rewrite the equation as like the below:
= (4 x 3) - (1 x 8)/(8 x 3)
step 3 Simplify and rewrite the fraction:
= (12 - 8)/24
= 4/24
= 1/6
4/8-1/3 = 1/6
Hence,
4/8 minus 1/3 = 1/6