The below workout with step by step calculation shows how to find the equivalent fraction between 1/2 and 2/9 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 1/2 plus 2/9 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.
1/2+2/9 using LCM Method:
What is 1/2 plus 2/9 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 2/9
What to be found?
1/2+2/9 = ?
Find what's the sum of 1/2 and 2/9.
step 2 Compare the denominators of fractions 1/2 and 2/9 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 1/2 and 2/9 are not equal, it is said to be unlike fractions addition.
step 3For unlike fractions addition, find the LCM (least common multiple) of both denominators of fractions 1/2 and 2/9:
The LCM of 2 and 9 is 18.
step 4 Write the fractions 1/2 and 2/9 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
=1/2+2/9
=(1 x 18)/(2 x 18)+(2 x 18)/(9 x 18)
step 5 Simplify the expression to have common denominator:
=9/18+4/18
step 6 Take the common values out and rewrite the above expression like the below:
=1/18 x (9/1+4/1)
=1/18 x (9 + 4)
step 7Simplify the above expression further:
=1/18 x 13
=13/18
1/2+2/9=13/18
Hence,
1/2 plus 2/9 equals to 13/18 in fraction.
1/2+2/9 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 2/9
What to be found?
1/2+2/9 = ?
Find what's the sum of 1/2 and 2/9.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 9), find the product of numerator of Fraction B and denominator of Fraction A (2 x 2), and find the product of both denominators of Fraction A and Fraction B (2 x 9) and rewrite the equation as like the below:
= (1 x 9) + (2 x 2)/(2 x 9)
step 3 Simplify and rewrite the fraction:
= (9 + 4)/18
1/2+2/9 = 13/18
Hence,
1/2 plus 2/9 = 13/18