What is 9/4 - 4/7 in fraction?
9/4 - 4/7 equals to 47/28 in fraction form.
Learn how to find what is 9/4 minus 4/7 in fraction form just in a few minutes. We have covered the easiest method to write 9/4 - 4/7 as a fraction and decimal.
Summary: 9/4 minus 4/7 = 47/28
Since both fractions have unequal denominators, 9/4 minus 4/7 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 9/4 and fraction 4/7 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 4 and 7. 28 is the LCM of 4 and 7. Multiplying the LCM 28 with the numerators and denominators of both fractions (9/4 x 28/28) - (4/7 x 28/28), and simplify further in order to have the common denominator. So the equivalent fraction for 9/4 is 63/28 and for 4/7 is 16/28. By simplifying this fraction subtraction 63/28 - 16/28, it becomes 47/28.
The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 4/7 from 9/4. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/4 minus 4/7.
1. LCM method
2. Cross multiplication method.
(9/4) - (4/7) using LCM Method:
What is 9/4 minus 4/7 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/4
Fraction B: 4/7
What to be found?
(9/4) - (4/7) = ?
Find what's the difference between 9/4 and 4/7.
step 2 Compare the denominators of fractions 9/4 and 4/7 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 9/4 and 4/7 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 9/4 and 4/7:
The LCM of 4 and 7 is 28.
step 4 Write the fractions 9/4 and 4/7 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 9/4 - 4/7
= [(9 x 28)/(4 x 28)] - [(4 x 28)/(7 x 28)]
step 5 Simplify the expression to have common denominator:
= 63/28 - 16/28
step 6 Take the common values out and rewrite the above expression like the below:
= 1/28 x (63/1 - 16/1)
= 1/28 x (63 - 16)
step 7Simplify the above expression further:
= 1/28 x 47
= 47/28
9/4 - 4/7 = 47/28
Hence,
9/4 minus 4/7 as a fraction is 47/28.
9/4 - 4/7 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/4
Fraction B: 4/7
What to be found?
(9/4)-(4/7) = ?
Find what's the difference between 9/4 and 4/7.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (9 x 7), find the product of numerator of Fraction B and denominator of Fraction A (4 x 4), and find the product of both denominators of Fraction A and Fraction B (4 x 7) and rewrite the equation as like the below:
= (9 x 7) - (4 x 4)/(4 x 7)
step 3 Simplify and rewrite the fraction:
= (63 - 16)/28
9/4 - 4/7 = 47/28
Hence,
9/4 minus 4/7 in fraction is 47/28