1/7 - 3/14 as a fraction

Learn how to find what is 1/7 minus 3/14 in fraction form just in a few minutes. We have covered the easiest method to write 1/7 - 3/14 as a fraction and decimal.

Summary: 1/7 minus 3/14 = -1/14
Since both fractions have unequal denominators, 1/7 minus 3/14 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 1/7 and fraction 3/14 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 7 and 14. 14 is the LCM of 7 and 14. Multiplying the LCM 14 with the numerators and denominators of both fractions (1/7 x 14/14) - (3/14 x 14/14), and simplify further in order to have the common denominator. So the equivalent fraction for 1/7 is 2/14 and for 3/14 is 3/14. By simplifying this fraction subtraction 2/14 - 3/14, it becomes -1/14.

CALCULATION: 1/7 - 3/14 as a fraction
1/7 - 3/14 = (?)
1/7 - 3/14 = [(1 x 14) - (3 x 7)]/(7 x 14)
= (14 - 21)/98
= -7/98
= (7 x -1)/(7 x 14)
= -1/14
1/7 - 3/14 = -1/14
1/7 minus 3/14 as a fraction is -1/14.

where
1/7 is a proper fraction as a minuend,
3/14 is a proper fraction as a subtrahend,
-1/14 is the difference between 1/7 and 3/14.

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1/7 minus 3/14 as a decimal
1/7 - 3/14 = -1/14
-1/14 = -0.0714
(1/7) - (3/14) as a decimal is -0.0714

where
-0.0714 is the difference between 1/7 and 3/14.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 3/14 from 1/7. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 1/7 minus 3/14.
1. LCM method
2. Cross multiplication method.

(1/7) - (3/14) using LCM Method:
What is 1/7 minus 3/14 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/7
Fraction B: 3/14

What to be found?
(1/7) - (3/14) = ?
Find what's the difference between 1/7 and 3/14.

step 2 Compare the denominators of fractions 1/7 and 3/14 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/7 and 3/14 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 1/7 and 3/14:
The LCM of 7 and 14 is 14.

step 4 Write the fractions 1/7 and 3/14 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 1/7 - 3/14
= [(1 x 14)/(7 x 14)] - [(3 x 14)/(14 x 14)]

step 5 Simplify the expression to have common denominator:
= 2/14 - 3/14

step 6 Take the common values out and rewrite the above expression like the below:
= 1/14 x (2/1 - 3/1)
= 1/14 x (2 - 3)

step 7Simplify the above expression further:
= 1/14 x -1
= -1/14
1/7 - 3/14 = -1/14

Hence,
1/7 minus 3/14 as a fraction is -1/14.

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1/7 - 3/14 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/7
Fraction B: 3/14

What to be found?
(1/7)-(3/14) = ?
Find what's the difference between 1/7 and 3/14.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 14), find the product of numerator of Fraction B and denominator of Fraction A (3 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 14) and rewrite the equation as like the below:
= (1 x 14) - (3 x 7)/(7 x 14)

step 3 Simplify and rewrite the fraction:
= (14 - 21)/98
= -7/98
= -1/14
1/7 - 3/14 = -1/14

Hence,
1/7 minus 3/14 in fraction is -1/14