12/7 - 7/3 as a fraction

Learn how to find what is 12/7 minus 7/3 in fraction form just in a few minutes. We have covered the easiest method to write 12/7 - 7/3 as a fraction and decimal.

Summary: 12/7 minus 7/3 = -13/21
Since both fractions have unequal denominators, 12/7 minus 7/3 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 12/7 and fraction 7/3 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 7 and 3. 21 is the LCM of 7 and 3. Multiplying the LCM 21 with the numerators and denominators of both fractions (12/7 x 21/21) - (7/3 x 21/21), and simplify further in order to have the common denominator. So the equivalent fraction for 12/7 is 36/21 and for 7/3 is 49/21. By simplifying this fraction subtraction 36/21 - 49/21, it becomes -13/21.

CALCULATION: 12/7 - 7/3 as a fraction
12/7 - 7/3 = (?)
12/7 - 7/3 = [(12 x 3) - (7 x 7)]/(7 x 3)
= (36 - 49)/21
= -13/21
12/7 - 7/3 = -13/21
12/7 minus 7/3 as a fraction is -13/21.

where
12/7 is a improper fraction as a minuend,
7/3 is a improper fraction as a subtrahend,
-13/21 is the difference between 12/7 and 7/3.

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12/7 minus 7/3 as a decimal
12/7 - 7/3 = -13/21
-13/21 = -0.619
(12/7) - (7/3) as a decimal is -0.619

where
-0.619 is the difference between 12/7 and 7/3.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 7/3 from 12/7. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 12/7 minus 7/3.
1. LCM method
2. Cross multiplication method.

(12/7) - (7/3) using LCM Method:
What is 12/7 minus 7/3 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/7
Fraction B: 7/3

What to be found?
(12/7) - (7/3) = ?
Find what's the difference between 12/7 and 7/3.

step 2 Compare the denominators of fractions 12/7 and 7/3 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 12/7 and 7/3 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 12/7 and 7/3:
The LCM of 7 and 3 is 21.

step 4 Write the fractions 12/7 and 7/3 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 12/7 - 7/3
= [(12 x 21)/(7 x 21)] - [(7 x 21)/(3 x 21)]

step 5 Simplify the expression to have common denominator:
= 36/21 - 49/21

step 6 Take the common values out and rewrite the above expression like the below:
= 1/21 x (36/1 - 49/1)
= 1/21 x (36 - 49)

step 7Simplify the above expression further:
= 1/21 x -13
= -13/21
12/7 - 7/3 = -13/21

Hence,
12/7 minus 7/3 as a fraction is -13/21.

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12/7 - 7/3 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/7
Fraction B: 7/3

What to be found?
(12/7)-(7/3) = ?
Find what's the difference between 12/7 and 7/3.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (12 x 3), find the product of numerator of Fraction B and denominator of Fraction A (7 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 3) and rewrite the equation as like the below:
= (12 x 3) - (7 x 7)/(7 x 3)

step 3 Simplify and rewrite the fraction:
= (36 - 49)/21
12/7 - 7/3 = -13/21

Hence,
12/7 minus 7/3 in fraction is -13/21