What is 2/8 minus 4/9 in fraction?
2/8 minus 4/9 equals to -7/36 in fraction form.
Learn how to find what is 2/8 minus 4/9 in fraction form just in a few minutes. We have covered the easiest method to write 2/8 - 4/9 as a fraction and decimal.
Summary: 2/8 minus 4/9
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 2/8 and 4/9 having identical denominators before starting adding the fractions. Find the LCM of denominators, 72 is the LCM of 8 and 9. Multiply the LCM 72 with all the numerators and denominators of both fractions (2/8 x 72/72) - (4/9 x 72/72) and simplify further in order to have the common denominators. By simplifying the fraction subtraction expression becomes -14/72.
The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 4/9 from 2/8. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 2/8 minus 4/9.
1. LCM method
2. Cross multiplication method.
2/8-4/9 using LCM Method:
What is 2/8 minus 4/9 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/8
Fraction B: 4/9
What to be found?
2/8-4/9 = ?
Find what's the difference between 2/8 and 4/9.
step 2 Compare the denominators of fractions 2/8 and 4/9 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 2/8 and 4/9 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 2/8 and 4/9:
The LCM of 8 and 9 is 72.
step 4 Write the fractions 2/8 and 4/9 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=2/8-4/9
=(2 x 72)/(8 x 72)-(4 x 72)/(9 x 72)
step 5 Simplify the expression to have common denominator:
=18/72-32/72
step 6 Take the common values out and rewrite the above expression like the below:
=1/72 x (18/1-32/1)
=1/72 x (18 - 32)
step 7Simplify the above expression further:
=1/72 x -14
= -14/72
=-7/36
2/8-4/9=-7/36
Hence,
2/8 minus 4/9 equals to -7/36 in fraction.
2/8-4/9 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/8
Fraction B: 4/9
What to be found?
2/8-4/9 = ?
Find what's the difference between 2/8 and 4/9.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (2 x 9), find the product of numerator of Fraction B and denominator of Fraction A (4 x 8), and find the product of both denominators of Fraction A and Fraction B (8 x 9) and rewrite the equation as like the below:
= (2 x 9) - (4 x 8)/(8 x 9)
step 3 Simplify and rewrite the fraction:
= (18 - 32)/72
= -14/72
= -7/36
2/8-4/9 = -7/36
Hence,
2/8 minus 4/9 = -7/36