What is 12/5 - 7/4 in fraction?
12/5 - 7/4 equals to 13/20 in fraction form.
Learn how to find what is 12/5 minus 7/4 in fraction form just in a few minutes. We have covered the easiest method to write 12/5 - 7/4 as a fraction and decimal.
Summary: 12/5 minus 7/4 = 13/20
Since both fractions have unequal denominators, 12/5 minus 7/4 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 12/5 and fraction 7/4 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 5 and 4. 20 is the LCM of 5 and 4. Multiplying the LCM 20 with the numerators and denominators of both fractions (12/5 x 20/20) - (7/4 x 20/20), and simplify further in order to have the common denominator. So the equivalent fraction for 12/5 is 48/20 and for 7/4 is 35/20. By simplifying this fraction subtraction 48/20 - 35/20, it becomes 13/20.
Pie Chart Representation: 12/5 - 7/4 = 13/20
The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 7/4 from 12/5. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 12/5 minus 7/4.
1. LCM method
2. Cross multiplication method.
(12/5) - (7/4) using LCM Method:
What is 12/5 minus 7/4 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/5
Fraction B: 7/4
What to be found?
(12/5) - (7/4) = ?
Find what's the difference between 12/5 and 7/4.
step 2 Compare the denominators of fractions 12/5 and 7/4 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 12/5 and 7/4 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 12/5 and 7/4:
The LCM of 5 and 4 is 20.
step 4 Write the fractions 12/5 and 7/4 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 12/5 - 7/4
= [(12 x 20)/(5 x 20)] - [(7 x 20)/(4 x 20)]
step 5 Simplify the expression to have common denominator:
= 48/20 - 35/20
step 6 Take the common values out and rewrite the above expression like the below:
= 1/20 x (48/1 - 35/1)
= 1/20 x (48 - 35)
step 7Simplify the above expression further:
= 1/20 x 13
= 13/20
12/5 - 7/4 = 13/20
Hence,
12/5 minus 7/4 as a fraction is 13/20.
12/5 - 7/4 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/5
Fraction B: 7/4
What to be found?
(12/5)-(7/4) = ?
Find what's the difference between 12/5 and 7/4.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (12 x 4), find the product of numerator of Fraction B and denominator of Fraction A (7 x 5), and find the product of both denominators of Fraction A and Fraction B (5 x 4) and rewrite the equation as like the below:
= (12 x 4) - (7 x 5)/(5 x 4)
step 3 Simplify and rewrite the fraction:
= (48 - 35)/20
12/5 - 7/4 = 13/20
Hence,
12/5 minus 7/4 in fraction is 13/20