7/2 + 17/20 as a fraction

Learn how to find what is 7/2 plus 17/20 in fraction form just in a few minutes. We have covered the easiest method to write 7/2 + 17/20 as a fraction and decimal.

Summary: 7/2 plus 17/20 = 87/20
Since both fractions have unequal denominators, 7/2 plus 17/20 is an unlike fractions addition. For adding unlike fractions, you have to first find the equivalent fractions for fraction 7/2 and fraction 17/20 in order to have the same denominators for both fractions. Therefore, you have to find the LCM of denominators 2 and 20. 20 is the LCM of 2 and 20. Multiplying the LCM 20 with the numerators and denominators of both fractions (7/2 x 20/20) + (17/20 x 20/20), and simplify further in order to have the common denominator. So the equivalent fraction for 7/2 is 70/20 and for 17/20 is 17/20. By simplifying this fraction addition 70/20 + 17/20, it becomes 87/20.

CALCULATION: 7/2 + 17/20 as a fraction
7/2 + 17/20 = (?)
7/2 + 17/20 = [(7 x 20) + (17 x 2)]/(2 x 20)
= (140 + 34)/40
= 174/40
= (2 x 87)/(2 x 20)
= 87/20
7/2 + 17/20 = 87/20
7/2 plus 17/20 as a fraction is 87/20.

where
7/2 is a improper fraction as an addend,
17/20 is a proper fraction as an addend,
87/20 is the sum of 7/2 and 17/20.

---

7/2 plus 17/20 as a decimal
7/2 + 17/20 = 87/20
87/20 = 4.35
(7/2) + (17/20) as a decimal is 4.35

where
4.35 is the sum of 7/2 and 17/20.

The below workout with step by step calculation shows how to find the equivalent fraction between 7/2 and 17/20 by adding two fractions with different, unequal or unlike denominators. The sum in fraction form for 7/2 plus 17/20 can be obtained by using anyone of the two methods below.
1. LCM method
2. Cross multiplication method.

(7/2) + (17/20) using LCM Method:
What is 7/2 plus 17/20 as a fraction?

step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/2
Fraction B: 17/20

What to be found?
(7/2) + (17/20) = ?
Find what's the sum of 7/2 and 17/20.

step 2 Compare the denominators of fractions 7/2 and 17/20 to identify whether it is a like or unlike fraction addition. Since the denominators of given fractions 7/2 and 17/20 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 7/2 and 17/20:
The LCM of 2 and 20 is 20.

step 4 Write the fractions 7/2 and 17/20 in the addition expression form and multiply LCM with all the numerators and denominators of both fractions.
= 7/2 + 17/20
= [(7 x 20)/(2 x 20)] + [(17 x 20)/(20 x 20)]

step 5 Simplify the expression to have common denominator:
= 70/20 + 17/20

step 6 Take the common values out and rewrite the above expression like the below:
= 1/20 x (70/1 + 17/1)
= 1/20 x (70 + 17)

step 7Simplify the above expression further:
= 1/20 x 87
= 87/20
7/2 + 17/20 = 87/20

Hence,
7/2 plus 17/20 as a fraction is 87/20.

---

7/2 + 17/20 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 7/2
Fraction B: 17/20

What to be found?
(7/2)+(17/20) = ?
Find what's the sum of 7/2 and 17/20.

step 2 Find the product of numerator of Fraction A and denominator of Fraction B (7 x 20), find the product of numerator of Fraction B and denominator of Fraction A (17 x 2), and find the product of both denominators of Fraction A and Fraction B (2 x 20) and rewrite the equation as like the below:
= (7 x 20) + (17 x 2)/(2 x 20)

step 3 Simplify and rewrite the fraction:
= (140 + 34)/40
= 174/40
= 87/20
7/2 + 17/20 = 87/20

Hence,
7/2 plus 17/20 in fraction is 87/20