What is 9/7 minus 9/8 in fraction?
9/7 minus 9/8 equals to 9/56 in fraction form.
Learn how to find what is 9/7 minus 9/8 in fraction form just in a few minutes. We have covered the easiest method to write 9/7 - 9/8 as a fraction and decimal.
Summary: 9/7 minus 9/8
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 9/7 and 9/8 having identical denominators before starting adding the fractions. Find the LCM of denominators, 56 is the LCM of 7 and 8. Multiply the LCM 56 with all the numerators and denominators of both fractions (9/7 x 56/56) - (9/8 x 56/56) and simplify further in order to have the common denominators. By simplifying the fraction subtraction expression becomes 9/56.
The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 9/8 from 9/7. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 9/7 minus 9/8.
1. LCM method
2. Cross multiplication method.
9/7-9/8 using LCM Method:
What is 9/7 minus 9/8 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/7
Fraction B: 9/8
What to be found?
9/7-9/8 = ?
Find what's the difference between 9/7 and 9/8.
step 2 Compare the denominators of fractions 9/7 and 9/8 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 9/7 and 9/8 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 9/7 and 9/8:
The LCM of 7 and 8 is 56.
step 4 Write the fractions 9/7 and 9/8 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=9/7-9/8
=(9 x 56)/(7 x 56)-(9 x 56)/(8 x 56)
step 5 Simplify the expression to have common denominator:
=72/56-63/56
step 6 Take the common values out and rewrite the above expression like the below:
=1/56 x (72/1-63/1)
=1/56 x (72 - 63)
step 7Simplify the above expression further:
=1/56 x 9
=9/56
9/7-9/8=9/56
Hence,
9/7 minus 9/8 equals to 9/56 in fraction.
9/7-9/8 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 9/7
Fraction B: 9/8
What to be found?
9/7-9/8 = ?
Find what's the difference between 9/7 and 9/8.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (9 x 8), find the product of numerator of Fraction B and denominator of Fraction A (9 x 7), and find the product of both denominators of Fraction A and Fraction B (7 x 8) and rewrite the equation as like the below:
= (9 x 8) - (9 x 7)/(7 x 8)
step 3 Simplify and rewrite the fraction:
= (72 - 63)/56
9/7-9/8 = 9/56
Hence,
9/7 minus 9/8 = 9/56