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