What is 2/5 plus 7/20 in fraction?
2/5 plus 7/20 equals to 3/4 in fraction form.
Learn how to find what is 2/5 plus 7/20 in fraction form just in a few minutes. We have covered the easiest method to write 2/5 + 7/20 as a fraction and decimal.
Summary: 2/5 plus 7/20
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 2/5 and 7/20 having identical denominators before starting adding the fractions. Find the LCM of denominators, 20 is the LCM of 5 and 20. Multiply the LCM 20 with all the numerators and denominators of both fractions (2/5 x 20/20) + (7/20 x 20/20) and simplify further in order to have the common denominators. By simplifying the fraction addition expression becomes 15/20.
The below workout with step by step calculation shows how to find the equivalent fraction between 2/5 and 7/20 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 2/5 plus 7/20 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.
2/5+7/20 using LCM Method:
What is 2/5 plus 7/20 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/5
Fraction B: 7/20
What to be found?
2/5+7/20 = ?
Find what's the sum of 2/5 and 7/20.
step 2 Compare the denominators of fractions 2/5 and 7/20 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 2/5 and 7/20 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 2/5 and 7/20:
The LCM of 5 and 20 is 20.
step 4 Write the fractions 2/5 and 7/20 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
=2/5+7/20
=(2 x 20)/(5 x 20)+(7 x 20)/(20 x 20)
step 5 Simplify the expression to have common denominator:
=8/20+7/20
step 6 Take the common values out and rewrite the above expression like the below:
=1/20 x (8/1+7/1)
=1/20 x (8 + 7)
step 7Simplify the above expression further:
=1/20 x 15
= 15/20
=3/4
2/5+7/20=3/4
Hence,
2/5 plus 7/20 equals to 3/4 in fraction.
2/5+7/20 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 2/5
Fraction B: 7/20
What to be found?
2/5+7/20 = ?
Find what's the sum of 2/5 and 7/20.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (2 x 20), find the product of numerator of Fraction B and denominator of Fraction A (7 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:
= (2 x 20) + (7 x 5)/(5 x 20)
step 3 Simplify and rewrite the fraction:
= (40 + 35)/100
= 75/100
= 3/4
2/5+7/20 = 3/4
Hence,
2/5 plus 7/20 = 3/4