1/2 - 1/45 as a fraction

Learn how to find what is 1/2 minus 1/45 in fraction form just in a few minutes. We have covered the easiest method to write 1/2 - 1/45 as a fraction and decimal.

Summary: 1/2 minus 1/45 = 43/90
Since both fractions have unequal denominators, 1/2 minus 1/45 is an unlike fractions subtraction. For subtracting unlike fractions, you have to first find the equivalent fractions for fraction 1/2 and fraction 1/45 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 2 and 45. 90 is the LCM of 2 and 45. Multiplying the LCM 90 with the numerators and denominators of both fractions (1/2 x 90/90) - (1/45 x 90/90), and simplify further in order to have the common denominator. So the equivalent fraction for 1/2 is 45/90 and for 1/45 is 2/90. By simplifying this fraction subtraction 45/90 - 2/90, it becomes 43/90.

Pie Chart Representation: 1/2 - 1/45 = 43/90

CALCULATION: 1/2 - 1/45 as a fraction
1/2 - 1/45 = (?)
1/2 - 1/45 = [(1 x 45) - (1 x 2)]/(2 x 45)
= (45 - 2)/90
= 43/90
1/2 - 1/45 = 43/90
1/2 minus 1/45 as a fraction is 43/90.

where
1/2 is a proper fraction as a minuend,
1/45 is a proper fraction as a subtrahend,
43/90 is the difference between 1/2 and 1/45.

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1/2 minus 1/45 as a decimal
1/2 - 1/45 = 43/90
43/90 = 0.4778
(1/2) - (1/45) as a decimal is 0.4778

where
0.4778 is the difference between 1/2 and 1/45.

The below workout with step by step calculation shows how to find what is the difference between two fractions by subtracting a fraction 1/45 from 1/2. For different, unequal or unlike denominators, use any one of the following methods to find the equivalent fraction for 1/2 minus 1/45.
1. LCM method
2. Cross multiplication method.

(1/2) - (1/45) using LCM Method:
What is 1/2 minus 1/45 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 1/45

What to be found?
(1/2) - (1/45) = ?
Find what's the difference between 1/2 and 1/45.

step 2 Compare the denominators of fractions 1/2 and 1/45 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/2 and 1/45 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 1/2 and 1/45:
The LCM of 2 and 45 is 90.

step 4 Write the fractions 1/2 and 1/45 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
= 1/2 - 1/45
= [(1 x 90)/(2 x 90)] - [(1 x 90)/(45 x 90)]

step 5 Simplify the expression to have common denominator:
= 45/90 - 2/90

step 6 Take the common values out and rewrite the above expression like the below:
= 1/90 x (45/1 - 2/1)
= 1/90 x (45 - 2)

step 7Simplify the above expression further:
= 1/90 x 43
= 43/90
1/2 - 1/45 = 43/90

Hence,
1/2 minus 1/45 as a fraction is 43/90.

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1/2 - 1/45 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 1/45

What to be found?
(1/2)-(1/45) = ?
Find what's the difference between 1/2 and 1/45.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 45), find the product of numerator of Fraction B and denominator of Fraction A (1 x 2), and find the product of both denominators of Fraction A and Fraction B (2 x 45) and rewrite the equation as like the below:
= (1 x 45) - (1 x 2)/(2 x 45)

step 3 Simplify and rewrite the fraction:
= (45 - 2)/90
1/2 - 1/45 = 43/90

Hence,
1/2 minus 1/45 in fraction is 43/90