What is 7/4 - 9 in fraction?
7/4 - 9 equals to -29/4 in fraction form.
Learn how to find what is 7/4 minus 9 in fraction form just in a few minutes. We have covered the easiest method to write 7/4 - 9 as a fraction and decimal.
Summary: 7/4 minus 9 = -29/4
Since both fractions have unequal denominators, 7/4 minus 9 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 7/4 and fraction 9 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 4 and 1. 4 is the LCM of 4 and 1. Multiplying the LCM 4 with the numerators and denominators of both fractions (7/4 x 4/4) - (9 x 4/4), and simplify further in order to have the common denominator. So the equivalent fraction for 7/4 is 7/4 and for 9 is 36/4. By simplifying this fraction subtraction 7/4 - 36/4, it becomes -29/4.
The below workout with step by step calculation shows how to find the difference between fraction and a whole number by subtracting 9 from 7/4. use any one of the following methods to find the equivalent fraction for 7/4 minus 9.
1. LCM method
2. Cross multiplication method.
(7/4) - (9) using LCM Method:
What is 7/4 minus 9 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/4
Fraction B: 9/1
What to be found?
(7/4) - (9) = ?
Find what's the difference between 7/4 and 9.
step 2 Compare the denominators of fractions 7/4 and 9 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 7/4 and 9 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 7/4 and 9:
The LCM of 4 and 1 is 4.
step 4 Write the fractions 7/4 and 9 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 7/4 - 9
= [(7 x 4)/(4 x 4)] - [(9 x 4)/(1 x 4)]
step 5 Simplify the expression to have common denominator:
= 7/4 - 36/4
step 6 Take the common values out and rewrite the above expression like the below:
= 1/4 x (7/1 - 36/1)
= 1/4 x (7 - 36)
step 7Simplify the above expression further:
= 1/4 x -29
= -29/4
7/4 - 9 = -29/4
Hence,
7/4 minus 9 as a fraction is -29/4.
7/4 - 9 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/4
Fraction B: 9/1
What to be found?
(7/4)-(9) = ?
Find what's the difference between 7/4 and 9.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 1), find the product of numerator of Fraction B and denominator of Fraction A (9 x 4), and find the product of both denominators of Fraction A and Fraction B (4 x 1) and rewrite the equation as like the below:
= (7 x 1) - (9 x 4)/(4 x 1)
step 3 Simplify and rewrite the fraction:
= (7 - 36)/4
7/4 - 9 = -29/4
Hence,
7/4 minus 9 in fraction is -29/4