What is 7/9 minus 2/4 in fraction?
7/9 minus 2/4 equals to 5/18 in fraction form.
Learn how to find what is 7/9 minus 2/4 in fraction form just in a few minutes. We have covered the easiest method to write 7/9 - 2/4 as a fraction and decimal.
Summary: 7/9 minus 2/4
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 7/9 and 2/4 having identical denominators before starting adding the fractions. Find the LCM of denominators, 36 is the LCM of 9 and 4. Multiply the LCM 36 with all the numerators and denominators of both fractions (7/9 x 36/36) - (2/4 x 36/36) and simplify further in order to have the common denominators. By simplifying the fraction subtraction expression becomes 10/36.
The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 2/4 from 7/9. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 7/9 minus 2/4.
1. LCM method
2. Cross multiplication method.
7/9-2/4 using LCM Method:
What is 7/9 minus 2/4 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 2/4
What to be found?
7/9-2/4 = ?
Find what's the difference between 7/9 and 2/4.
step 2 Compare the denominators of fractions 7/9 and 2/4 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 7/9 and 2/4 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 7/9 and 2/4:
The LCM of 9 and 4 is 36.
step 4 Write the fractions 7/9 and 2/4 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=7/9-2/4
=(7 x 36)/(9 x 36)-(2 x 36)/(4 x 36)
step 5 Simplify the expression to have common denominator:
=28/36-18/36
step 6 Take the common values out and rewrite the above expression like the below:
=1/36 x (28/1-18/1)
=1/36 x (28 - 18)
step 7Simplify the above expression further:
=1/36 x 10
= 10/36
=5/18
7/9-2/4=5/18
Hence,
7/9 minus 2/4 equals to 5/18 in fraction.
7/9-2/4 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/9
Fraction B: 2/4
What to be found?
7/9-2/4 = ?
Find what's the difference between 7/9 and 2/4.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 4), find the product of numerator of Fraction B and denominator of Fraction A (2 x 9), and find the product of both denominators of Fraction A and Fraction B (9 x 4) and rewrite the equation as like the below:
= (7 x 4) - (2 x 9)/(9 x 4)
step 3 Simplify and rewrite the fraction:
= (28 - 18)/36
= 10/36
= 5/18
7/9-2/4 = 5/18
Hence,
7/9 minus 2/4 = 5/18