12/5 + 3/20 as a fraction

Learn how to find what is 12/5 plus 3/20 in fraction form just in a few minutes. We have covered the easiest method to write 12/5 + 3/20 as a fraction and decimal.

Summary: 12/5 plus 3/20 = 51/20
Since both fractions have unequal denominators, 12/5 plus 3/20 is an unlike fractions addition. For adding unlike fractions, you have to first find the equivalent fractions for fraction 12/5 and fraction 3/20 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 5 and 20. 20 is the LCM of 5 and 20. Multiplying the LCM 20 with the numerators and denominators of both fractions (12/5 x 20/20) + (3/20 x 20/20), and simplify further in order to have the common denominator. So the equivalent fraction for 12/5 is 48/20 and for 3/20 is 3/20. By simplifying this fraction addition 48/20 + 3/20, it becomes 51/20.

CALCULATION: 12/5 + 3/20 as a fraction
12/5 + 3/20 = (?)
12/5 + 3/20 = [(12 x 20) + (3 x 5)]/(5 x 20)
= (240 + 15)/100
= 255/100
= (5 x 51)/(5 x 20)
= 51/20
12/5 + 3/20 = 51/20
12/5 plus 3/20 as a fraction is 51/20.

where
12/5 is a improper fraction as an addend,
3/20 is a proper fraction as an addend,
51/20 is the sum of 12/5 and 3/20.

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12/5 plus 3/20 as a decimal
12/5 + 3/20 = 51/20
51/20 = 2.55
(12/5) + (3/20) as a decimal is 2.55

where
2.55 is the sum of 12/5 and 3/20.

The below workout with step by step calculation shows how to find the equivalent fraction between 12/5 and 3/20 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 12/5 plus 3/20 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

(12/5) + (3/20) using LCM Method:
What is 12/5 plus 3/20 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/5
Fraction B: 3/20

What to be found?
(12/5) + (3/20) = ?
Find what's the sum of 12/5 and 3/20.

step 2 Compare the denominators of fractions 12/5 and 3/20 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 12/5 and 3/20 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 12/5 and 3/20:
The LCM of 5 and 20 is 20.

step 4 Write the fractions 12/5 and 3/20 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
= 12/5 + 3/20
= [(12 x 20)/(5 x 20)] + [(3 x 20)/(20 x 20)]

step 5 Simplify the expression to have common denominator:
= 48/20 + 3/20

step 6 Take the common values out and rewrite the above expression like the below:
= 1/20 x (48/1 + 3/1)
= 1/20 x (48 + 3)

step 7Simplify the above expression further:
= 1/20 x 51
= 51/20
12/5 + 3/20 = 51/20

Hence,
12/5 plus 3/20 as a fraction is 51/20.

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12/5 + 3/20 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 12/5
Fraction B: 3/20

What to be found?
(12/5)+(3/20) = ?
Find what's the sum of 12/5 and 3/20.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (12 x 20), find the product of numerator of Fraction B and denominator of Fraction A (3 x 5), and find the product of both denominators of Fraction A and Fraction B (5 x 20) and rewrite the equation as like the below:
= (12 x 20) + (3 x 5)/(5 x 20)

step 3 Simplify and rewrite the fraction:
= (240 + 15)/100
= 255/100
= 51/20
12/5 + 3/20 = 51/20

Hence,
12/5 plus 3/20 in fraction is 51/20