What is 18/7 - 16 in fraction?
18/7 - 16 equals to -94/7 in fraction form.
Learn how to find what is 18/7 minus 16 in fraction form just in a few minutes. We have covered the easiest method to write 18/7 - 16 as a fraction and decimal.
Summary: 18/7 minus 16 = -94/7
Since both fractions have unequal denominators, 18/7 minus 16 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 18/7 and fraction 16 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 7 and 1. 7 is the LCM of 7 and 1. Multiplying the LCM 7 with the numerators and denominators of both fractions (18/7 x 7/7) - (16 x 7/7), and simplify further in order to have the common denominator. So the equivalent fraction for 18/7 is 18/7 and for 16 is 112/7. By simplifying this fraction subtraction 18/7 - 112/7, it becomes -94/7.
The below workout with step by step calculation shows how to find the difference between fraction and a whole number by subtracting 16 from 18/7. use any one of the following methods to find the equivalent fraction for 18/7 minus 16.
1. LCM method
2. Cross multiplication method.
(18/7) - (16) using LCM Method:
What is 18/7 minus 16 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 18/7
Fraction B: 16/1
What to be found?
(18/7) - (16) = ?
Find what's the difference between 18/7 and 16.
step 2 Compare the denominators of fractions 18/7 and 16 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 18/7 and 16 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 18/7 and 16:
The LCM of 7 and 1 is 7.
step 4 Write the fractions 18/7 and 16 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 18/7 - 16
= [(18 x 7)/(7 x 7)] - [(16 x 7)/(1 x 7)]
step 5 Simplify the expression to have common denominator:
= 18/7 - 112/7
step 6 Take the common values out and rewrite the above expression like the below:
= 1/7 x (18/1 - 112/1)
= 1/7 x (18 - 112)
step 7Simplify the above expression further:
= 1/7 x -94
= -94/7
18/7 - 16 = -94/7
Hence,
18/7 minus 16 as a fraction is -94/7.
18/7 - 16 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 18/7
Fraction B: 16/1
What to be found?
(18/7)-(16) = ?
Find what's the difference between 18/7 and 16.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (18 x 1), find the product of numerator of Fraction B and denominator of Fraction A (16 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 1) and rewrite the equation as like the below:
= (18 x 1) - (16 x 7)/(7 x 1)
step 3 Simplify and rewrite the fraction:
= (18 - 112)/7
18/7 - 16 = -94/7
Hence,
18/7 minus 16 in fraction is -94/7