8/9 - 15 as a fraction

Learn how to find what is 8/9 minus 15 in fraction form just in a few minutes. We have covered the easiest method to write 8/9 - 15 as a fraction and decimal.

Summary: 8/9 minus 15 = -127/9
Since both fractions have unequal denominators, 8/9 minus 15 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 8/9 and fraction 15 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 9 and 1. 9 is the LCM of 9 and 1. Multiplying the LCM 9 with the numerators and denominators of both fractions (8/9 x 9/9) - (15 x 9/9), and simplify further in order to have the common denominator. So the equivalent fraction for 8/9 is 8/9 and for 15 is 135/9. By simplifying this fraction subtraction 8/9 - 135/9, it becomes -127/9.

CALCULATION: 8/9 - 15 as a fraction
8/9 - 15 = (?)
8/9 - 15/1 = [(8 x 1) - (15 x 9)]/(9 x 1)
= (8 - 135)/9
= -127/9
8/9 - 15 = -127/9
8/9 minus 15 as a fraction is -127/9.

where
8/9 is a proper fraction as a minuend,
15 is a whole number as a subtrahend,
-127/9 is the difference between 8/9 and 15.

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8/9 minus 15 as a decimal
8/9 - 15 = -127/9
-127/9 = -14.1111
(8/9) - (15) as a decimal is -14.1111

where
-14.1111 is the difference between 8/9 and 15.

The below workout with step by step calculation shows how to find the difference between fraction and a whole number by subtracting 15 from 8/9. use any one of the following methods to find the equivalent fraction for 8/9 minus 15.
1. LCM method
2. Cross multiplication method.

(8/9) - (15) using LCM Method:
What is 8/9 minus 15 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 8/9
Fraction B: 15/1

What to be found?
(8/9) - (15) = ?
Find what's the difference between 8/9 and 15.

step 2 Compare the denominators of fractions 8/9 and 15 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 8/9 and 15 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 8/9 and 15:
The LCM of 9 and 1 is 9.

step 4 Write the fractions 8/9 and 15 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 8/9 - 15
= [(8 x 9)/(9 x 9)] - [(15 x 9)/(1 x 9)]

step 5 Simplify the expression to have common denominator:
= 8/9 - 135/9

step 6 Take the common values out and rewrite the above expression like the below:
= 1/9 x (8/1 - 135/1)
= 1/9 x (8 - 135)

step 7Simplify the above expression further:
= 1/9 x -127
= -127/9
8/9 - 15 = -127/9

Hence,
8/9 minus 15 as a fraction is -127/9.

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8/9 - 15 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 8/9
Fraction B: 15/1

What to be found?
(8/9)-(15) = ?
Find what's the difference between 8/9 and 15.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (8 x 1), find the product of numerator of Fraction B and denominator of Fraction A (15 x 9), and find the product of both denominators of Fraction A and Fraction B (9 x 1) and rewrite the equation as like the below:
= (8 x 1) - (15 x 9)/(9 x 1)

step 3 Simplify and rewrite the fraction:
= (8 - 135)/9
8/9 - 15 = -127/9

Hence,
8/9 minus 15 in fraction is -127/9